Solve the problem.A rock falls from a tower that is 88.2 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 
Round to the nearest tenth, if necessary.
A. 1587.6 sec
B. 4.2 sec
C. 9.1 sec
D. 9.4 sec
Answer: B
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Identify all of the symmetries in the following figure.
A. It has rotation symmetry with angles of 360° ÷ 5 = 72° and multiples of 72°. It can also be reflected across five lines through its center and retain its appearance. B. It has rotation symmetry; it can be rotated through 270° and its appearance remains the same. C. It has rotation symmetry with angles of 360° ÷ 5 = 72° and multiples of 72°. D. None of these.
A truck must drop off furniture at 4 different homes (A, B, C, and D) as shown in the graph below, starting and ending at A. The numbers on the edges represent distances (in miles) between locations. The truck driver wants to minimize the total length of the trip.
The nearest-neighbor tour starting with vertex A is given by:
A. A, B, C, D, A. B. A, C, B, D, A. C. A, B, D, C, A. D. A, D, C, B, A. E. none of these
Evaluate the expression.74 - 4 ? 3 + 120 ÷ (-6)
A. 42 B. 190 C. -32 D. -1435
Add and simplify. Write the answer as an improper fraction as needed.
+ 
A. 
B. 
C. 
D. 