Question 330308
P = 2L + 2W

A = L*W


Length = b + 7

width = b


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Let P = perimeter

P = 2(b + 7) + 2b

P = 2b + 14 + 2b

P = 4b + 14

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Let A = area

A = (b + 7)(b)

A = b^2 + 7b