Answer:
6 weeks
Explanation:
7 feet is 84 inches 7 x 12 is 84
we must find the difference
84-63=21
now we divide 21 by 3.5
and week get how much weeks we have left
21/3.5=6
7 ft = 84 in
84-63=3.5*(number of weeks)
21=3.5*(number of weeks)
21/3.5=number of weeks
6= number of weeks
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