2025.5 International B

Math · 44 questions Go to Reading and Writing

Module 1 (Medium)

1

In triangle ABC, the measure of angle A is 34° and the measure of angle B is 90°. What is the measure, in degrees, of angle C?

  1. A34
  2. B56
  3. C90
  4. D180
BGeometry and Trigonometry / Right triangle · Accuracy 99.66%
2

Which expression is equivalent to 3xy(2x^2+7y) ?

  1. A5x^3y+10xy^2
  2. B6x^2y+7y
  3. C6x^2y+21xy
  4. D6x^3y+21xy^2
DAdvanced Math / Operations of polynomials · Accuracy 99.45%
3

Which expression is equivalent to 30x^2+6x+6 ?

  1. A5x^2(6x+6)
  2. B30x(x+1)
  3. C65x^2+x+16(5x^2+x+1) 65x^2+x+1
  4. D4(2x^2+x+1)
CAdvanced Math / Operations of polynomials · Accuracy 99.79%
4

For a particular tree species, it is recommended to plant a maximum of 92 trees per acre. Based on this recommendation, what is the maximum number of trees of this species that can be planted on 2 acres?

  1. A276
  2. B184
  3. C94
  4. D90
BAlgebra / Linear functions word problem · Accuracy 99.59%
5

A gym charges its members a onetime $34 enrollment fee and a membership fee of $16 per month. If there are no charges other than the enrollment fee and the membership fee, after how many months will a member have been charged a total of $178 at the gym?

9Algebra / Linear equation word problem · Accuracy 95.95%
6

f(x)=7x+b
For the linear function f, b is a constant and f(8)=56 . What is the value of b?

  1. A0
  2. B1
  3. C7
  4. D8
AAlgebra / Linear functions word problem · Accuracy 99.24%
7

The function f defined by f(t)=14t+9 gives the estimated length, in inches, of a pothos plant t months after Shruti purchased it. Which of the following is the best interpretation of 9 in this context?

  1. AShruti will keep the pothos plant for 9 months.
  2. BThe pothos plant is expected to grow 9 inches each month.
  3. CThe pothos plant is expected to grow to a maximum length of 9 inches.
  4. DThe estimated length of the pothos plant was 9 inches when Shruti purchased it.
DAlgebra / Interpreting linear equation · Accuracy 98.49%
8

At a convention center, there are a total of 375 visitors. Each visitor is located in either room A, room B, or room C. If one of these visitors is selected at random, the probability of selecting a visitor who is located in room A is 0.48, and the probability of selecting a visitor who is located in room B is 0.24. How many visitors are located in room C?

  1. A28
  2. B43
  3. C90
  4. D105
DProblem Solving and Data Analysis / Ratios and proportion · Accuracy 96.76%
9

x^2-28x=0
Which of the following is a solution to the given equation?

  1. A56
  2. B28
  3. C14
  4. D√28
BAdvanced Math / Solving quadratic equations · Accuracy 97.31%
10

A right square pyramid has a height of 12 inches and a volume of 196 cubic inches. What is the perimeter, in inches, of the base of this pyramid?

28Geometry and Trigonometry / Volume · Accuracy 74.95%
11

The value of a share of stock was $240 on the day it was purchased. Every year, the value of the share of stock increases by 1% of its value the previous year. Which function V gives the value, in dollars, of the share of stock t years after the day it was purchased?

  1. AV(t)=240(1.01t)
  2. BV(t)=240(1.1t)
  3. CV(t)=240(1.01)^t
  4. DV(t)=240(1.1)^t
CAdvanced Math / Exponential word problems · Accuracy 96.82%
12

If f(x)=x+3 and g(x)=3x , what is the value of 6f(3)-g(3) ?

  1. A-3
  2. B12
  3. C18
  4. D27
DAlgebra / Linear functions word problem · Accuracy 97.57%
13

3x+9y=10
rx+18y=20
In the given system of equations, r is a constant. The system has infinitely many solutions. What is the value of r?

  1. A2
  2. B3
  3. C6
  4. D9
CAlgebra / Solving systems of linear equations · Accuracy 98.89%
14

A club plans to sell tote bags. The club members estimate they will sell 80 tote bags when the bags are priced at $9 each. For every price increase of $1, they estimate they will sell 8 fewer bags. What is the estimated revenue, in dollars, when the bags are priced at $12 each? (revenue = price × number sold)

672Advanced Math / Quadratic word problems · Accuracy 88.3%
15

3x+6y=17
-3x-4y=5
The solution to the given system of equations is (x,y). What is the value of 2y ?

22Algebra / Solving systems of linear equations · Accuracy 95.3%
16

What value of w is the solution to the equation 0.7w-0.57=7(w-0.001) ?

-0.089,-.0894,-.0893Algebra / Solve linear equation · Accuracy 77.76%
17

Which quadratic equation has exactly one distinct real solution?

  1. Ax^2-16=0
  2. Bx^2+16=0
  3. Cx^2-16x+56=0
  4. Dx^2-16x+64=0
DAdvanced Math / Solving quadratic equations · Accuracy 95.24%
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18

Quinidra drove her car on a straight road to a certain location. The graph models Quinidra's distance, in miles, from her home as a function of time, in hours. Which of the following could the model describe?

  1. AQuinidra drove away from her home at a constant speed for 1 hour, spent 4 hours at the location, then continued to drive away from her home at a constant speed for 1 hour.
  2. BQuinidra drove away from her home at a constant speed for 1 hour, spent 4 hours at the location, then drove back to her home at a constant speed for 1 hour.
  3. CQuinidra drove away from her home at an increasing speed for 1 hour, spent 4 hours at the location, then drove back to her home at a decreasing speed for 1 hour.
  4. DQuinidra drove away from her home at an increasing speed for 1 hour, drove at a constant speed for 4 hours, then drove back to her home at a decreasing speed for 1 hour.
BProblem Solving and Data Analysis / Key feature of graphs · Accuracy 88.76%
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19

The frequency table summarizes the mass, in grams, of 35 objects. What is the mean mass, in grams, of these objects?

24Problem Solving and Data Analysis / Mean, mode, median · Accuracy 93.41%
20

What is the y-intercept of y=-(4)^x-39 in the xy-plane?

  1. A(0,-40)
  2. B(0,-43)
  3. C(0,-39)
  4. D(0,-38)
AAdvanced Math / Nonlinear equation graphs · Accuracy 95.9%
21

A rectangular poster has an area of 330 square inches. A copy of the poster is made in which the length and width of the original poster are each increased by 50%. What is the area of the copy, in square inches?

742.5Geometry and Trigonometry / Congruence and similarity · Accuracy 88.27%
22

A circle in the xy-plane has center (28,5) and y-intercepts (0,-16) and (0,26). What is the radius of this circle?

  1. A35
  2. B26
  3. C21
  4. D16
AGeometry and Trigonometry / Circle equation · Accuracy 85.64%

Module 2 (Advanced)

1

The total cost f(x) , in dollars, to lease a car for 24 months from a particular car dealership is given by f(x)=24x+1,000 , where x is the monthly payment, in dollars. What is the total cost to lease a car when the monthly payment is $300?

  1. A$6,200
  2. B$7,000
  3. C$8,200
  4. D$25,300
CAlgebra / Linear functions word problem · Accuracy 99.44%
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2

In the figure shown, line l intersects lines j and k. Which additional piece of information is sufficient to prove that lines j and k are parallel?

  1. Aw=54
  2. Bx=126
  3. Cy=54
  4. Dz=126
AGeometry and Trigonometry / Angles and Arc length · Accuracy 97.28%
3

5x+3=rx+7
In the given equation, r is a constant. The equation has no solution. What is the value of r?

  1. A21
  2. B8
  3. C7
  4. D5
DAlgebra / Solve linear equation · Accuracy 98.95%
4

If 5(2x+9)=3(2x+9)+74 , what is the value of 2x+9 ?

  1. A74
  2. B37
  3. C28
  4. D14
BAlgebra / Solve linear equation · Accuracy 98.46%
5

If 350% of n is 35, what is the value of n?

  1. A12,250
  2. B1,225
  3. C1,000
  4. D10
DProblem Solving and Data Analysis / Percents · Accuracy 99.37%
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6

The table shows two values of x and their corresponding values of h(x) for the linear function h. Which equation defines h?

  1. Ah(x)=1/3x-5/3
  2. Bh(x)=3x+5
  3. Ch(x)=4x+17
  4. Dh(x)=6x+23
BAlgebra / Linear functions word problem · Accuracy 99.09%
7

y=x^2+17x+4
y=x+4
The graphs of the equations in the given system intersect at the point (x,y) in the xy-plane. What is a possible value of x?

  1. A-16
  2. B-15
  3. C13
  4. D15
AAdvanced Math / linear and quadratic systems · Accuracy 98.74%
8

A piece of string with a length of 108 inches is cut into two parts. One part has a length of x inches, and the other part has a length of y inches. The value of x is 8 more than 4 times the value of y. What is the value of x?

  1. A25
  2. B29
  3. C58
  4. D88
DAlgebra / Systems of linear equations word problem · Accuracy 97.77%
9

A landscaper will plant two types of shrubs, hydrangeas and winter hazels, in a park. There will be no more than 244 total shrubs planted, and the number of hydrangeas planted will be at most three times the number of winter hazels planted. Which of the following systems of inequalities best represents this situation, where h is the number of hydrangeas that will be planted and w is the number of winter hazels that will be planted?

  1. Ah+w≤244
    h≤3w
  2. Bh+w≤244
    3h≥w
  3. Ch+w≥244
    h≤3w
  4. Dh+w≥244
    3h≥w
AAlgebra / System of linear inequalities word problem · Accuracy 94.83%
10

y≤x+3
y≥-3x-7
Which point (x,y) is a solution to the given system of inequalities in the xy-plane?

  1. A(0,-14)
  2. B(0,14)
  3. C(-14,0)
  4. D(14,0)
DAlgebra / Solving systems of linear inequalities · Accuracy 92.41%
11

3x^2-5x-5=0
What is the greatest solution to the given equation?

  1. A5/6-(√85)/6
  2. B5/6+(√85)/6
  3. C5/3-(√85)/3
  4. D5/3+(√85)/3
BAdvanced Math / Solving quadratic equations · Accuracy 96.17%
12

f(x)=-0.0038400x^2+15.236x-15,103
The model shown gives the predicted average Arctic sea ice area f(x) , in millions of square kilometers, for September of each year x, where x represents a year and 1979≤x≤2012 . Based on the model, what is the positive difference, in millions of square kilometers, between the predicted average Arctic sea ice area for September of the year 1991 and the predicted average Arctic sea ice area for September of the year 1992? (Round your answer to the nearest thousandth.)

0.059,.059Advanced Math / Quadratic word problems · Accuracy 62.36%
13

What is the y-intercept of the graph of y=(8/13)^(x+1) in the xy-plane?

  1. A(8,13)
  2. B(0,13)
  3. C(0,8)
  4. D(0,8/13)
DAdvanced Math / Nonlinear equation graphs · Accuracy 98.66%
14

f(x)=x^2-4x-320
The function f is defined by the given equation. Which of the following equivalent forms of the equation displays the minimum value of the function as a constant or coefficient?

  1. Af(x)=x^2-4(x+80)
  2. Bf(x)=(x-2)^2+(-324)
  3. Cf(x)=x(x-4)+(-320)
  4. Df(x)=(x+16)(x-20)
BAdvanced Math / Transform of quadratic expressions · Accuracy 84.8%
15

Line s in the xy-plane is defined by 6x+2y=0 . Line t is perpendicular to line s and passes through the points (7,0) and (k,4/3) . What is the value of k?

11Algebra / Graphing linear equations · Accuracy 78.01%
16

g(x)=x^3+ax^2+bx+c
The function g is defined by the given equation, where a, b, and c are integer constants. The zeros of the function are -2 , -7 , and 6 . What is the value of a?

  1. A-84
  2. B-3
  3. C3
  4. D84
CAdvanced Math / Polynomial factors and graphs · Accuracy 87.76%

The weight of each object in two groups, A and B, was recorded. The histograms represent the distributions of weight, in grams, for the objects in groups A and B.

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17

The mean weight of the objects in group A is equal to 2.1, and the mean weight of the objects in group B is equal to 11.1. Which of the following statements about the standard deviations of weight for the objects in these two groups is true?

  1. AThe standard deviation of weight for the objects in group A is less than the standard deviation of weight for the objects in group B.
  2. BThe standard deviation of weight for the objects in group A is equal to the standard deviation of weight for the objects in group B.
  3. CThe standard deviation of weight for the objects in group A is greater than the standard deviation of weight for the objects in group B.
  4. DThere is not enough information to compare the standard deviations of weight for the objects in these two groups.
CProblem Solving and Data Analysis / Spread of distribution · Accuracy 71.15%
18

A carpenter charges a flat rate of $216 for the first 3 hours of work and $60 for each additional hour of work. Which equation gives the total amount y, in dollars, that the carpenter charges for x hours of work, where x>3 ?

  1. Ay=60x+216
  2. By=216x+396
  3. Cy=60x+36
  4. Dy=216x+60
CAlgebra / Linear functions word problem · Accuracy 89.21%
19

46/p=46/q-46/r-46/s
The given equation relates the positive variables p, q, r, and s. Which of the following is equivalent to q?

  1. Aprs/(pr+ps+rs)
  2. Bprs/(46p+46r+46s)
  3. Cp+r+s
  4. D46(p+r+s)
AAdvanced Math / Isolating quantities · Accuracy 84.22%
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20

In the figure, AD and BC intersect at point D . The measure of ∠ABD is w° , the measure of ∠CAD is z° , and AD=178 . If cos w°=9/41 , what is the value of tan z° ?

40/9,4.444Geometry and Trigonometry / Trigonometric functions · Accuracy 64.77%
21

A right square pyramid has a total surface area of 70,560 square inches, and the combined surface area of the four lateral faces of this pyramid is 38,160 square inches. What is the height, in inches, of this pyramid?

  1. A56
  2. B90
  3. C106
  4. D180
AGeometry and Trigonometry / Volume · Accuracy 75.46%
22

1/cx=x/96+1/c
In the given equation, c is a constant. If the equation has exactly one solution, what is the value of c?

-24Advanced Math / Rational transformation · Accuracy 71.69%