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OpenStudy (anonymous):
Billy bought a comic book for $2.25. now it's a collectors item worth $20. What was the increase in price? round to the nearest hundredth percent.
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OpenStudy (anonymous):
So you're looking for some x, multiplied by the original price, to get to the new price. Therefore you have... (2.25)x = 20 Solve for x and you get 8.8889. Change this into a percentage and you get 888.89%
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