PLZ ANSWER THIS!!!! QUICK
posted by yasha .
Suppose the lengths of the four side of a quadrilateral are represented by the expressions 3a, a+2, 2a1, and 3a+6. write the sum of the lenghts (the perimeter), and then simplify.

add up the four side for the perimeter. I will be happy to critique your work.

Is the answer 8a1. If not, please help.
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