If possible, evaluate the power function at the specified value of x by hand. Otherwise, use a calculator to approximate the result to the nearest hundredth.f(x) = x3/2 , x = 2
A. 2.83
B. 1.59
C. -1.59
D. -2.83
Answer: A
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Solve the problem.The position of a body moving on a coordinate line is given by 
with s in meters and t in seconds. When, if ever, during the interval 
does the body change direction?
A. t = 10 sec B. t = 2.5 sec C. no change in direction D. t = 5 sec
Solve the problem.The average per-person annual consumption of hot dogs is shown in the table. Let C be the average per-person consumption of hot dogs at t years since 2002. C = 0.97t + 18.41 can be used to model the data.
What is the C-intercept and what does it mean in this situation?
A. (0, 18.41); In 2002 the average consumption was 18.41 hot dogs per-person. B. (-18.98,0); In 2021 the average consumption will be 0 hot dogs per-person. C. (0, 0.97); In 2002 the average consumption was 0.97 hot dogs per-person. D. (0, 18.41); Each year the average consumption is increased by 18.41 hot dogs per person.
Solve for x using an equivalent exponential expression.
The drawing shows the end of a building that is to be bricked. If the area of the side of a brick used is 
find the number of bricks needed to completely cover the side of the building.
A. 308 bricks B. 51 bricks C. 1,848 bricks D. 2,184 bricks
Write using exponents.8 ? 8 ? 8 ? 8
A. 85 B. 48 C. 84 D. 32