Question

amie 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. A) y − 0.15y B) 0.05(0.85y) C) y − 0.85y + 0.05y D) 1.05(0.85y)

Answer 1

y before everything was equal to y.

y after the sale was equal to (1-0.15)y= 85y.

y after the tax 1.05(0.85y).