Solve the problem.A loaded moving truck is traveling 20 mph faster than a freight train. In the time it takes the train to travel 120 miles, the truck travels 200 miles. Find the speed of the truck.
A. 50 mph
B. 10 mph
C. 20 mph
D. 100 mph
Answer: A
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Based on the figure, specify the given set in a simpler way.
A. 
B. 
C. 
D. 
Solve the equation.
= 0
A. 9, -9 B. -9 C. 81, -81 D. 9
Solve the problem. Round your answer to the nearest tenth, when appropriate.A grasshopper is perched on a reed 5 inches above the ground. It hops off the reed and lands on the ground about 5.4 inches away. During its hop, its height is given by the equation 
, where x is the distance in inches from the base of the reed, and h is in inches. How far was the grasshopper from the base of the reed when it was 4.5 inches above the ground?
A. 0.4 in. B. 0.5 in. C. 3.5 in. D. 5.4 in.
Find the end behavior of the polynomial function. f(x) = x3 + 3x2 - 3x - 3
A. f(x) ? ? as x ? -?; f(x) ? -? as x ? ? B. f(x) ? -? as x ? -?; f(x) ? ? as x ? ? C. f(x) ? ? as x ? -?; f(x) ? ? as x ? ? D. f(x) ? -? as x ? -?; f(x) ?- ? as x ? ?