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Jamie purchased a DVD that was on sale for 15% off. The sales tax in her county is 5%. Let y represent the original price of the DVD. Write an expression that can be used to determine the final cost of
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Jamie purchased a DVD that was on sale for 15% off. The sales tax in her county is 5%. Let y represent the original price of the DVD. Write an expression that can be used to determine the final cost of the DVD.

User Erik B
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0.05(0.85y)=5%(of the onsale dvd) and a is just the on sale dvd (85%)
User Anton Kasianchuk
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