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OpenStudy (anonymous):
Bought a CD for $55 on sale for 80% off . How much did he pay?
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OpenStudy (anonymous):
He's only paying 20% of the price (since it is 80% off). So 20% of 55 is just .20 x 55 = $11.
OpenStudy (anonymous):
My bad.
OpenStudy (anonymous):
green...if you're not sure, then it's better not to respond.
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