Answer :

one of the ways you could do it would be 10d + 2d you just add both 5d's and both d's because they are common factors.
skilewis
A rectangle is 5 times as long as its width, meaning that length/5 = width
So the perimeter could also be stated as:
l + l + [tex] \frac{1}{5} [/tex]l + [tex] \frac{1}{5} [/tex]l  

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