# Math Help Qucik!

Alex bought 144 bagels for \$80. His profit was \$75 once he had sold 100 bagels. Which equation represents Alex's profit,P as a function of the number sold, n?

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1. Cost of the bagels is 144 for \$80.
When he sold 100 bagels, he has earned \$155 gross (which is his profit of \$75 + cost of \$80).
Therefore 1 bagel is sold for \$1.55.
He earns \$1.55n
but since his costs are \$80,
P=1.55n - 80

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posted by Elina
2. ok, thank you! But i don't understand why you need to find the gross?

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posted by Bethany
3. wait... isnt gross the revenue? lol sorry if that's a dumb query

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posted by Bethany

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