Question 948819
Length = Width - 7
L = W-7

76 = 2 ( L+W)
76/2 = L + W
38 = L + W
38 = W - 7 + W
38 + 7 = 2W
45 = 2W
W = 45/2 
W = 22.5

L = W -7
L = 22.5 - 7 = 15.5 

A = 15.5 x 22.5 = 348. 75