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Please help quick!!! 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.


y − 0.15y

0.05(0.85y)

y − 0.85y + 0.05y

1.05(0.85y)

Sagot :

1.05(.85y)

The .85y gets you the sales price, and multiplying by 1.05 adds in the sales tax.
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