Answer:
Quadrilateral
Step-by-step explanation:
The definition of a parallelogram is a quadrilateral that has two sets of parallel sides.
It has on this year $15,450
9 dollars represents 90% of the cost. Divide 9 by 0.90 to get the original price, 10 dollars
Answer: x=9 is an extraneous solution
Step-by-step explanation:
Given
Function is 
for function to exist

Therefore, 9 satisfies the above equation. It is it's extraneous solution.
2²+2²=2*2²=2³=8
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