Answer: HI
w = 8
Explanation:
hi
P = 2L + 2W
P = 72
L = 2W + 4
72 = 3(2W + 4) 2W
72 = 6W + 8 + 2W
72 =8W + 8
64 = 8W
W = 8
if the width is 8, then the length is thrice that plus 4 or 28 + 28 + 8 + 8 = 72
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