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OpenStudy (anonymous):
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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OpenStudy (anonymous):
\[(18-10)/18 = 4/9 = 0.444...\]
OpenStudy (anonymous):
er, 44.4%
OpenStudy (anonymous):
thanks got that also. yay!
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