Michael J. answered 09/13/15
Tutor
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Effective High School STEM Tutor & CUNY Math Peer Leader
$30.47 was the original price. If we multiply this price by 0.60, we get the discount price because it's 60% off. We then take the difference between these prices to get the sales price.
Sales price = 30.47 - 30.47(0.60)
I leave this to you to complete the rest.