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.

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

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

danjs · Answer

15% off means that the price is now 85% the original,   or  0.85 times Y

danjs · Answer

Then the tax adds on 5% or 1.05 times the sale price

anonymous · Answer

i don't understand

anonymous · Answer

i will give you a medal

danjs · Answer

The sale price is 85 % the original price...

Sale Price = (0.85)*Y

danjs · Answer

Tax is 5% of that sale price, or (1.05)*(Sale Price) .....

1.05* (0.85)*Y

danjs · Answer

That is the final cost