Solve the problem.Bert is 16.5 kilometers away from Brenda. Both begin to walk toward each other at the same time. Bert walks at 4 kilometers per hour. They meet in 3 hours. How fast is Brenda walking?
A. 1.5 kilometers per hour
B. 4 kilometers per hour
C. 3.5 kilometers per hour
D. 2.5 kilometers per hour
Answer: A
Mathematics
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= 
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A. 40x4y2 + 16xy + 7
B. 5x4y2 + 2xy3 + 
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, 
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