What is the length of the shortest side if the perimeter of the rectangle is 56 inches?

Answer:
12
Step-by-step explanation:
3x + 3x + 5x - 4 + 5x - 4 = 56
16x - 8 = 56
16x = 64
x = 4
3(4) = 12
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Answer:
area= 5x(5x-4)
Step-by-step explanation:
perimiter= 2(5x-4) + 2(5x-4)