Solve the problem.A rock is thrown vertically upward from the surface of an airless planet. It reaches a height of 
meters in t seconds. How high does the rock go? How long does it take the rock to reach its highest point?
A. 2380 m, 20 sec
B. 2400 m, 40 sec
C. 1200 m, 20 sec
D. 4680 m, 40 sec
Answer: C
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A function of x is depicted in the graph. Find any input values that produce the indicated output.f(x) = -2
A. x = -4 and x = 0 B. x = 4 and x = 0 C. x = -8 and x = 4 D. x = -4
Solve the problem.Suppose that there is no straight path for driving between towns A and B. To drive from Town A to Town B, it is necessary to travel due east for 21 miles, then due north for 18 miles. How far apart, to the nearest tenth of a mile, are the towns?
A. 345.0 mi B. 27.7 mi C. 6.2 mi D. 459.0 mi
Solve the problem.A game involves choosing 7 numbers from the numbers 1 through 13. In how many ways can this be done?
A. 1724 B. 8,648,640 C. 1696 D. 1716
Solve the problem.The total number of cars sold at a used car lot for the years 1996 and 1997 was 1064. From 1996 to 1997 the number of cars sold declined by 158. How many cars were sold in 1997?
A. 453 B. 459 C. 463 D. 447