Laura is training to run a race. She keeps track of the number of miles she runs. She has been training for 5 weeks, and she has run a total of 45 miles. At what rate has she been running, in miles per week?
A.
9 miles per week
B.
10 miles per week
C.
12 miles per week
D.
11 miles per week

The answer is a because your have to divid 45 and 5

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