Solve.A boat moves 5 kilometers upstream in the same amount of time it moves 18 kilometers downstream. If the rate of the current is 9 kilometers per hour, find the rate of the boat in still water.
A. 9 kilometers per hour
B. 6
kilometers per hour
C. 3
kilometers per hour
D. 15
kilometers per hour
Answer: D
Mathematics
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+ 
A. 4
+ 
B. 6
C. 8
D. 5
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A. Addition B. Division C. Subtraction D. Multiplication
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Graph the linear inequality.x ? 4
A. 
B. 
C. 
D. 
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