Solve the problem by using two equations with two variables.Julie and Eric row their boat (at a constant speed) 27 miles downstream for 3 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 9 hours. Find the rate of the current.
A. 6 mph
B. 4 mph
C. 2.5 mph
D. 3 mph
Answer: D
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Reduce the fraction to lowest terms.
A. 
B. 
C. 
D. 
Solve the inequality. Express your answer using interval notation.
> 9
A. (- 
, ?) or (2, ?)
B. (- 
, 2)
C. (-?, - 
) or (2, ?)
D. (-?, - 
) or (
, ?)
Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $35 for the repairman to come to the house, to which a charge of $26 per hour is added. Find an equation that can be used to determine the labor cost, C(x), of a repair that takes x hours.
A. C(x) = 26 + 35x B. C(x) = 35 + 26x C. C(x) = 35 - 26x D. C(x) = ( 35 + 26) x
Use an associative property to complete the statement. Do not simplify.7(4x) = 
A. 7(4 + x) B. (7 ? 4)x C. (7 ? 4) + x D. (7 + 4)x