Solve the problem.A rock falls from a tower that is 160 feet high. As it is falling, its height is given by the formula 
How many seconds (in tenths) will it take for the rock to hit the ground (h = 0)?
A. 12.6 sec
B. 3.2 sec
C. 12 sec
D. 1600 sec
Answer: B
Mathematics
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Perform the operations.10 + 32 - (-11) ? 5
A. 74 B. -36 C. 40 D. 135
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Solve the problem.The length of a rectangular frame is 6 cm more than the width. The area inside the frame is 135 square cm. Find the width of the frame.
A. 21 cm B. 15 cm C. 11 cm D. 9 cm
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Perform the indicated operation. Assume that all variables represent nonnegative real numbers.-4
+ 4
A. -1020
B. 12
C. 12m
D. -1020m
Mathematics
Evaluate the logarithm without using a calculator.log10 10
A. 1 B. 10 C. 0 D. -1
Mathematics