Solve the problem.A rock falls from a tower that is 256 feet 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 
Round to the nearest tenth, if necessary.
A. 16 sec
B. 4 sec
C. 4096 sec
D. 15.5 sec
Answer: B
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Identify the number represented on the abacus.
A. 49,392 B. 45,352 C. 40,302 D. 432
Graph the function.The relationship between the x and y coordinates of a circle with radius 
and y ? 0 is given by y = 
. Plot the graph for x ? 1.42.
A. 
B. 
C. 
D. 
Solve the problem.A salesperson earned $350 a week plus a bonus of $18 for each service contract sold. What is the weekly pay if 6 service contracts were sold?
A. $350 B. $558 C. $458 D. $108
Solve the problem.A rectangular swimming pool is being constructed, 18 feet long and 100 feet wide. The depth of the pool is measured at 3-foot intervals across the width of the pool. Estimate the volume of water in the pool using the Trapezoidal Rule.
A. 12,300 ft3 B. 10,500 ft3 C. 9300 ft3 D. 7000 ft3