Solve.A rock falls from a tower that is 78.4 m high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)? Round to the nearest tenth.
A. 8.9 sec
B. 1300 sec
C. 4 sec
D. 16 sec
Answer: C
Mathematics
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Fill in the blank(s) with the appropriate word(s).
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Provide an appropriate response.Write fourteen and seven hundred forty-seven thousandths using numbers.
A. 14,747 B. 14.747 C. 14.0747 D. 0.14747
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A. $746.62 B. $266.62 C. $719.63 D. $730.02
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Find the area of the triangle. If necessary, round the answer to two decimal places. 
A. 22.37 B. 10.5 C. 72.75 D. 18.19
Mathematics