Answer:
A.
Step-by-step explanation:
In a Parallelogram , the opposite sides are equal as well as parallel, so proving that the opposite sides are equal and parallel will definitely prove it to be a Parallelogram
9-2b
Set up equation:
Add like terms
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It's the last one
(3x-1)-(x²+4)
3x-1-x²-4
-x²+3x-5
