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Sagot :
Answer:
A. 22
Step-by-step explanation:
perimeter = length + length + width + width
P = L + L + W + W
P = 2L + 2W
70 = 2x + 2(x - 9)
70 = 2x + 2x - 18
88 = 4x
x = 88/4
x = 22
Answer: A. 22
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