Which expression is equivalent to 9(x^2+6) ?

1. A9x^2+3
   A
2. B9x^2+6
   B
3. C9x^2+15
   C
4. D9x^2+54
   D

The solution to a system of linear equations is (5, 5). Which of the following could be the graph of the equations in the system?

1. A
   
   A
2. B
   
   B
3. C
   
   C
4. D
   
   D

7x+21=7x+k
In the given equation, k is a constant. The equation has infinitely many solutions. What is the value of k ?

The function f is defined by f(x)=2x-1/4. What is the y-intercept of the graph of y=f(x) in the xy-plane?

1. A(0,-1/4)
   A
2. B(0,-2)
   B
3. C(0,2)
   C
4. D(0,4)
   D

The list gives the mass, in grams, of 5 ruffed lemurs.
3,810; 3,810; 3,530; 3,850; 3,550
What is the mean mass, in grams, of these 5 ruffed lemurs?

The price of an object increased from $16 to $80. What was the percent increase in the price of the object?

1. A20%
   A
2. B64%
   B
3. C80%
   C
4. D400%
   D

A student needs at least 190 signatures from classmates to run for class president. The student collects 30 signatures on Monday and collects enough additional signatures on Tuesday to run for class president. Which inequality represents the number of additional signatures, s, that the student collects on Tuesday?

1. As+30≤190
   A
2. Bs+30≥190
   B
3. Cs-30≤190
   C
4. Ds-30≥190
   D

Which expression is equivalent to 7x^6-14x^2 , where x>0 ?

1. A7(x^3-2x^2)^2
   A
2. Bx^2(7x-2)^4
   B
3. C7x^2(x-2)^4
   C
4. D7x^2(x^4-2)
   D

A chemist performed an experiment using a set of beakers that can each be modeled by a right circular cylinder with a height of 53 millimeters. The equation y=53πx^2 gives the volume y, in cubic millimeters, of the right circular cylinder that models a beaker in this set, where x is the radius, in millimeters, of the base of the cylinder. Which graph best represents this equation in the xy-plane?

1. A
   
   A
2. B
   
   B
3. C
   
   C
4. D
   
   D

8x^2+13x=6
What is the positive solution to the given equation?

Harper has $110 in an account. Each year she expects to have 2.7% more money in the account than she had the previous year. Which of the following models best describes how Harper expects the money in her account to change over time?

1. ADecreasing exponential
   A
2. BDecreasing linear
   B
3. CIncreasing exponential
   C
4. DIncreasing linear
   D

In right triangle RST, the sum of the measures of angle R and angle S is 90 degrees. The value of sin(R) is(2√10)/7. What is the value ofcos(S)?

1. A(3√10)/20
   A
2. B(2√10)/7
   B
3. C(7√10)/20
   C
4. D(2√10)/3
   D

Line t is defined by y=-1/2x+14 . Line s is perpendicular to line t in the xy-plane. What is the slope of line s?

1. A14
   A
2. B2
   B
3. C1/2
   C
4. D1/14
   D

f(x)=8(2)^(x/4)
Which table gives four values of x and their corresponding values of f(x) for the given exponential function?

1. A
   
   A
2. B
   
   B
3. C
   
   C
4. D
   
   D

The measure of angle C is 3π/4 radians. What is the value of cos(C)?

1. A-(√2)/2
   A
2. B-1/2
   B
3. C(√2)/2
   C
4. D(√3)/2
   D

7y=-6x+2,170
24x-28y=1,400
The solution to the given system of equations is (x,y). What is the value of x+y ?

A researcher observes a sample of a nuclide. An exponential model estimates that the mass, in grams, of the sample decreases by 23% every 11.69 minutes. Which of the following equations could represent this model, where M is the estimated mass, in grams, of the sample t minutes after the researcher began observing the sample?

1. AM=100(0.77)^(t/11.69)
   A
2. BM=100(0.77)^(t+11.69)
   B
3. CM=100(0.23)^(t/11.69)
   C
4. DM=100(0.23)^(t+11.69)
   D

-4∣5x+4∣+2=-14
What are all solutions to the given equation?

1. A0
   A
2. B0 and-1/5
   B
3. C0 and-8/5
   C
4. DThere is no solution.
   D

A sphere has a volume of 247.00 cubic yards. What is the volume of the sphere, in cubic meters? (Use 1 yard = 0.914 meter.)

y=3x+13
y=3x^2+13
Which ordered pair (x, y) is a solution to the given system of equations?

1. A(0,0)
   A
2. B(0,13)
   B
3. C(26,91)
   C
4. D(26,169)
   D

A certain elephant calf weighed 226 pounds when it was born. The elephant calf gained an average of 3 pounds per day in its first year of life. Which equation models this situation, where y is the estimated weight of the elephant calf, in pounds, x days after it was born?

1. Ay=226+3x
   A
2. By=226-3x
   B
3. Cy=3+226x
   C
4. Dy=3-226x
   D

Audrey's hair will grow at a constant rate from a length of 7 inches to a length of 11 inches. The equation 0.6t+7=11 describes this situation, where t is the number of months it will take for Audrey's hair to reach a length of 11 inches. Which of the following is the best interpretation of 0.6 in this context?

1. AThe time, in months, it will take Audrey's hair to grow 1 inch
   A
2. BThe length, in inches, Audrey's hair will grow each month
   B
3. CThe time, in months, it will take Audrey's hair to reach a length of 11 inches
   C
4. DThe length, in inches, Audrey's hair will grow in 11 months
   D

A rectangle has a length that is 31 times its width. The function y=(31w)(w) represents this situation, where y is the area, in square feet, of the rectangle and y>0 . Which of the following is the best interpretation of 31w in this context?

1. AThe length of the rectangle, in feet
   A
2. BThe area of the rectangle, in square feet
   B
3. CThe difference between the length and the width of the rectangle, in feet
   C
4. DThe width of the rectangle, in feet
   D

Which of the following expressions is equivalent to 11x^10-11x^9+77x ？

1. Ax(10x^10-10x^9+76x)
   A
2. Bx(11^10-11^9+77)
   B
3. C11x(x^10-x^9+7x)
   C
4. D11x(x^9-x^8+7)
   D

For x>0, the function f is defined as follows:
f(x) equals 293% of x
Which of the following could describe this function?

1. ADecreasing exponential
   A
2. BDecreasing linear
   B
3. CIncreasing exponential
   C
4. DIncreasing linear
   D

At a convention center, there are a total of 225 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 0.72, 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. A4
   A
2. B9
   B
3. C39
   C
4. D108
   D

f(x)=5(g(x))-3
g(x)=∣12x-7∣
The functions f and g are defined by the given equations. What is the value of f(-10)?

1. A-53
   A
2. B127
   B
3. C632
   C
4. D643
   D

In right triangle ABC, angles A and B are acute, side AC has a length of 28.2, and tan B=1/3. What is the length of side BC rounded to the nearest tenth?

1. A795.2
   A
2. B84.6
   B
3. C9.4
   C
4. D5.3
   D

If 16-5(3-7x)=4-6(3-7x),what is the value of 3-7x ?

For the linear function p, p(c)=-5, where c is a constant, p(3)=23 and the slope of the graph of y=p(x) in the xy-plane is 7. For the linear function t, t(c)=-6 and t(4)=34 . What is the slope of the graph of y=t(x) in the xy-plane?

1. A-1
   A
2. B2
   B
3. C7
   C
4. D8
   D

The positive number a is 2,136% of the sum of the positive numbers b and c, and b is 89% of c. What percent of b is a?

1. A4,536%
   A
2. B2,400%
   B
3. C40.37%
   C
4. D22.25%
   D

F(x)=9/5(x-273.15)+32
The function F gives the temperature, in degrees Fahrenheit, that corresponds to a temperature of x kelvins. If a temperature increased by 7.70 kelvins. By how much did the temperature increase, in degrees Fahrenheit?

The function f is a quadratic function. In the xy-plane, the graph of y=f(x)has a vertex at (1,4) and passes through the points (2,27) and (-1,96). What is the value of f(-2)-f(0)?

1. A73
   A
2. B119
   B
3. C184
   C
4. D211
   D

The triangle inequality theorem states that the sum of any two sides of a triangle must be greater than the length of the third side. If a triangle has side lengths of 7 and 10, which inequality represents the possible lengths, x, of the third side of the triangle?

1. Ax<17
   A
2. Bx>17
   B
3. C3<x<17
   C
4. Dx<3 orx>17
   D

The function g is defined by g(x)=3x. For what value of x is g(x)=12?

Right rectangular prism X is similar to right rectangular prism Y. The surface area of right rectangular prism X is 59 square centimeters (cm²), and the surface area of right rectangular prism Y is 1,475 cm². The volume of right rectangular prism Y is 1,500 cubic centimeters (cm³). What is the sum of the volumes, in cm³, of right rectangular prism X and right rectangular prism Y?

The function f is defined byf(x)=ab^(x/n) , where a, b, and n are constants, and b and n are integers, if f(3)=6 and f(5)=150, what is the value of f(6) ?

24x^2-(12a+2b)x+ab=0
In the given equation, a and b are positive constants. The sum of the solutions to the given equation is k(6a+b), where k is a constant. What is the value of k？