Question

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.

Answer 1

Fifteen percent off so the product is only worth .85% cuz 1-.15=.85
y(1-.15)=y*.85=.85y
Now there is an additional 5% tax
So its the orignal amount plus 5%
1.05(.85y)=.8925y

Answer 2

how bout this Ella purchased a game that was on sale for 12% off. The sales tax in her county is 6%. Let y represent the original price of the game. Write an expression that can be used to determine the final cost of the game.