Sabrina has a goal to save at least $240. Sabrina has already saved $180. If x represents the additional amount of money, in dollars, Sabrina needs to save to meet her goal, which inequality represents this situation?

1. Ax/180≥240
   A
2. B180x≥240
   B
3. C180+x≥240
   C
4. D180-x≥240
   D

The function f is defined by f(x)=12x+18. What is the y-coordinate of the y-intercept of the graph ofy=f(x) in the xy-plane?

A certain pigeon species can fly at an average speed of 16 meters per second when in continuous flight. At this rate, how many meters would this pigeon species fly in 4 seconds?

1. A64
   A
2. B20
   B
3. C16
   C
4. D12
   D

The function d is defined by d(x)=200-6^x. What is the value of d(0)?

1. A140
   A
2. B194
   B
3. C199
   C
4. D200
   D

A rectangular region of land is divided into 40 square lots of equal area sqrt(R)R , in square units. The length of the region is 1.6 times the width of the region. If the width of the region is x√R units, what is the value of x ?

Line k is defined by y=7x+2. Line j is parallel to line k in the xy-plane and passes through the point (0, 3). Which equation defines line j?

1. Ay=7x+3
   A
2. By=-3x+3
   B
3. Cy=-7x+3
   C
4. Dy=3x+3
   D

If x+4y=41 and 7x-20y=-97, what is the value of y?

For the linear function f, the graph of y=f(x) in the xy-plane has a slope of 28 and passes through the point (0, 0). The function f is defined by f(x)=ax, where a is a constant. What is the value of a?

The list gives the number of individuals in each of 6 groups of ring-tailed lemurs.
17, 4, 20, 17, 18, 6
What is the range of the numbers of individuals for the 6 groups of ring-tailed lemurs?

d=15t
The given equation relates the distance d, in inches, of an object from its starting position to the time t, in seconds, since the object started moving. What is the rate of change of the object's distance from its starting position over time?

1. A15t inches per second
   A
2. B15 inches per second
   B
3. C1/15 inches per second
   C
4. D1/15t inches per second
   D

What is the slope of the graph of y=1/2(15x+12)+3x in the xy-plane?

The function f is defined by f(x)=(x+11)/3,and f(a)=16, where a is a constant. What is the value of a?

1. A9
   A
2. B16
   B
3. C37
   C
4. D59
   D

Jasmin grows bean pods in her garden. This year, she harvested 330 bean pods and saved 10% of them to plant next year. How many of the harvested bean pods did Jasmin save to plant next year?

1. A23
   A
2. B33
   B
3. C41
   C
4. D43
   D

A sphere has a radius of 8/3 feet. What is the volume, in cubic feet, of the sphere?

1. A3/8π
   A
2. B32π/9
   B
3. C17π/3
   C
4. D(2,048π)/81
   D

A company that manufactures staplers calculates its monthly profit, in dollars, by subtracting its fixed monthly costs, in dollars, from its monthly sales revenue, in dollars. The equation 11,000=2.00x-6,500 represents this situation for a month where x staplers are manufactured and sold. Which statement is the best interpretation of 2.00x in this context?

1. AThe monthly sales revenue, in dollars, from selling x staplers
   A
2. BThe monthly sales revenue, in dollars, from each stapler sold
   B
3. CThe monthly cost, in dollars, of manufacturing each stapler
   C
4. DThe monthly cost, in dollars, of manufacturing x staplers
   D

If (x-16)/27=(x-16)/9, what is the value of x+16?

1. A0
   A
2. B3
   B
3. C16
   C
4. D32
   D

8|7-x|+1=81
What is the sum of the solutions to the given equation?

1. A-14
   A
2. B-3
   B
3. C10
   C
4. D14
   D

Levi and Marissa each have stamp collections. The number of stamps in Levi's collection is 200% of the number of stamps in Marissa's collection. If there are 460 stamps in Marissa's collection, how many stamps are in Levi's collection?

1. A230
   A
2. B460
   B
3. C920
   C
4. D1,380
   D

An object moves at a speed of 3/50 feet per second. What is this speed, in yards per second? (3 feet = 1 yard)

1. A50
   A
2. B6
   B
3. C9/50
   C
4. D1/50
   D

Which expression is equivalent to 158t^3-24t^2u ?

1. A2t(79t^2-12u)
   A
2. B2t^2(79t-12u)
   B
3. C2tu(79t^2-12)
   C
4. D2t^2u(79t-12)
   D

Circle K has a radius of 2 millimeters (mm). Circle L has an area of 144π mm². What is the total area, in mm², of circles K and L?

1. A14π
   A
2. B28π
   B
3. C56π
   C
4. D148π
   D

Which expression is equivalent to 2(x-3/2)(x+14) ?

1. Ax^2+25x-21
   A
2. B2x^2+11x-21
   B
3. C2x^2+25x-42
   C
4. D2x^2-42
   D

The function f is defined by f(x)=(-7)(4)^x+31. What is the y-intercept of the graph of y=f(x) in the xy-plane?

1. A(0,24)
   A
2. B(0,4)
   B
3. C(0,31)
   C
4. D(0,-7)
   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 of cos(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

y<42-7x
y/7>10
Which inequality represents the x values for all solutions (x, y) that satisfy the given system of inequalities in the xy-plane?

1. Ax>6
   A
2. Bx<6
   B
3. Cx>-4
   C
4. Dx<-4
   D

In the xy-plane, an equation of circle A is (x-2)^2+(y-3)^2=9. Circle B has the same center as circle A but has a radius that is twice the radius of circle A. Which equation represents circle B?

1. A(x-2)^2+(y-3)^2=18
   A
2. B(x-2)^2+(y-3)^2=36
   B
3. C(x-2)^2+(y-3)^2=54
   C
4. D(x-2)^2+(y-3)^2=81
   D

PC=N(44-C)
The given equation relates the variables P, N, and C. Which expression represents the value of C for distinct positive values of P and N?

1. A(C(N+P))/N
   A
2. BPC/(44-C)
   B
3. C44N/(N+P)
   C
4. D44N/(P+1)
   D

A partially filled container containing 24 milliliters of water is placed under a leaky faucet that produces one 0.03-milliliter drop of water every 3 seconds. Until the container is full, which of the following can be used to represent the volume v, in milliliters, of water in the container t seconds after it is placed under the faucet, where t is a multiple of 3?

1. Av=0.01t+24
   A
2. Bv=0.03t+24
   B
3. Cv=0.09t+24
   C
4. Dv=3t
   D

A research manager selected 2 random samples of ovens of a certain type to estimate the average amount of time this type of oven takes to preheat to 325 degrees Fahrenheit (°F). The research manager recorded the amount of time, in minutes, each oven takes to preheat to 325 °F. Based on the first sample, the research manager estimated that this type of oven takes an average of 15.2 minutes to preheat to 325 °F, with an associated margin of error of 1 minute. Based on the second sample, the research manager estimated that this type of oven takes an average of 15.4 minutes to preheat to 325 °F, with an associated margin of error of 2.2 minutes. Assuming the margins of error were calculated the same way, which of the following best explains why the first sample obtained a smaller margin of error than the second sample?

1. AThe first sample contained more ovens than the second sample.
   A
2. BThe first sample contained fewer ovens than the second sample.
   B
3. CThe first sample took more time on average to preheat to 325 °F than the second sample.
   C
4. DThe first sample took less time on average to preheat to 325 °F than the second sample.
   D

-3/19rx+s/8=10-5/57x
In the given equation, r and s are constants. The equation has no solution. What is the value of r?

-8x(x+9)=40
One solution to the given equation can be written as x=-(s+√t)/2, where s and t are positive integers. What is the value of s/t?

1. A9/101
   A
2. B9/76
   B
3. C9/61
   C
4. D18/61
   D

The equation N(m)=65(Q)^(m/4) gives the predicted population N(m), in thousands, of a certain bacteria colony m minutes after the initial measurement, where Q is a constant greater than 1. The predicted population increases by p% every 120 seconds. What is the value of p in terms of Q?

1. A100(Q^(1/2)+1)
   A
2. B100(Q^30+1)
   B
3. C100(Q^(1/2)-1)
   C
4. D100(Q^30-1)
   D

A quadratic function models the height, in feet, of an object above the ground in terms of the time, in seconds, after the object was launched. According to the model the object was launched from a height of 0 feet and reached its maximum height of 1,600 feet 10 seconds after it was launched. Based on the model, what was the height, in feet, of the object 7 seconds after it was launched?

The function p is defined by p(x)=a((x+5)^2-b)((x+5)^2-c), where a, b, and c are constants. In the xy-plane, the graph of y=p(x) passes through the points(-6,30) and (0,342). What is the value of p(-10)+p(-4)?

13(x-n)=13y+13n
One of the equations in a system of two linear equations is given, where n is a positive constant. The system has no solution. Which equation could be the second equation in this system?

1. A2x-2y=4n
   A
2. B2x+2y=2n
   B
3. C2x+2y=4n
   C
4. D2x-2y=2n
   D

(x-k)^2=(k-4a)(x-k)
In the given equation, a and k are constants, where k>4a. The sum of the solutions to the equation is 3k+35. What is the value of a?