Find the opposite of the number.-2
A. -2
B. 
C. 0
D. 2
Answer: D
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Simplify the expression using the order of operations.2 ? (8 - 5)2
A. 18 B. 32 C. 36 D. 11
Solve.How many different three-digit numbers can be written using digits from the set {2, 3, 4, 5, 6} without any repeating digits?
A. 120 B. 60 C. 10 D. 20
Solve the problem.An experimental model for a suspension bridge is built in the shape of a parabolic arch. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers stand 60 inches apart. At a point between the towers and 15 inches along the road from the base of one tower, the cable is 2.25 inches above the roadway. Find the height of the towers.
A. 8.5 in. B. 9.5 in. C. 9 in. D. 11 in.
Solve the problem.The rate of water usage for a business, in gallons per hour, is given by 
where t is the number of hours since midnight. Find the average rate of water usage over the interval 
A. 2.63 gallons per hour B. 2.71 gallons per hour C. 2.62 gallons per hour D. 0.05 gallons per hour