(X+y)(x-y) this is the answer
Answer:
Selling Price = $147
Mark Up = 75%
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The selling price of the skateboard is $84.
2X^2+4X-8-X^2+6X-4
X^2+4X-8+6X-4
X^2+10X-12
No, because if you divide 23 / 4, you get 5.75. You can't get 0.75th of a kid. So it is not reasonable, because it is a decimal, and not a whole number.
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