Question

Jessica purchased a DVD that was on sale for 12% off. The sales tax in her county is 3%. 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

Answer:

$88y + 03y = 91y$

Step-by-step explanation:

100% - 12% discount leaves 88% of y (88y)

3% tax = 03y    

$88y+03y=91y$

Answer 2

.88y +.03y = final cost or more simply .91y = final cost

100% - 12% discount leaves 88% of y (.88y)
3% tax = .03y   
.88y + .03y = .91y