Question

mary wants to buy a dvd. the original price was $29. the dvd is on sale for 30% off. how much was the discount? How much will mary pay for the dvd before sales tax is added?

Answer 1

Discount: $8.70 off

Mary will pay $20.30

Explanation:

Cross multiply and solve: 30/100 = x/29 ---> 30 * 29/100 = 8.7

29 - 8.7 = 20.3