SOLUTION: A shop sells compact disks for $18 per piece. If each disk costs $10 to the shop owner how much profit percent does the shop owner earn?

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Question 445659: A shop sells compact disks for $18 per piece. If each disk costs $10 to the shop owner how much profit percent does the shop owner earn?
Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
8/10=0.8=80%
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