An antiques dealer bought c antique chairs for a total of x dollars. The dealer sold each chair for y dollars

revenue = (number of items sold)(price per item)

The dealer sold c chairs, and each chair sold for y dollars
So, revenue = cy
Expenses = x (the dealer paid x dollars for the chairs)


(a) Write an algebraic expression for the profit, P, earned from buying and selling the chairs.
P = cy - x

(b) Write an algebraic expression for the profit per chair.
If the TOTAL profit = cy - x,
then the profit per chair = \(\frac{cy - x}{c}\)


Cheers,
Brent
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The answer for the second question is wrong: it should be y - x/c instead if y - c/x.

Good catch.
I've edited the official answer.
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