Solve the problem.A freight train leaves a station traveling at 32 km/h. Two hours later, a passenger train leaves the same station traveling in the same direction at 52 km/h. How long does it takes the passenger train to catch up to the freight train?
A. 5.2 hr
B. 2.2 hr
C. 3.2 hr
D. 4.2 hr
Answer: C
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Solve the problem.A swimming pool has a rectangular base 12 ft long and 24 ft wide. The sides are 7 ft high, and the pool is full of water. How much work will it take to lower the water level 2 feet by pumping the water out over the top of the pool? Assume that the water weighs 
Give your answer to the nearest ft ? lb.
A. 440,294 ft ? lb B. 17,971 ft ? lb C. 880,589 ft ? lb D. 35,942 ft ? lb
Simplify the expression.
A. 35y B. 36y C. y D. 1
Determine whether the equation defines y as a function of x.x = y2
A. y is a function of x B. y is not a function of x
Solve.A piece of cable which is 
m long is to be cut into pieces 
m long. How many pieces will there be?
A. 64 pieces
B. 
piece
C. 12 pieces
D. 48 pieces