Step-by-step explanation:
check the image that is your answer
Answer:
y= -5
c. 4x + 20 = 140
Perimeter = 140 feet
Width = L + 10
P = 2w + 2L
P = 2(L + 10) + 2L
P = 2L + 20 + 2L
P = 4L + 20
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