Question 1173828
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Hi,
Alan knows he has 18 feet of plastic edging to use for the Perimeter. 
and knows 18=2L+2W
  2L+2W = 18
  2(L + W) = 18
    L + W = 9   (Various lengths and widths can be used as long as their sum is 9)
Using the Lengths Given:
  L  W
  3  6
  4  5
  5  4
  6  3
Wish You the Best in your Studies.