Sid can buy a tennis racket from a sports store for 15% off the regular price of $89. He has a coupon for $20 off the regular price of $93 at his tennis club. Which is the better buy?
For the first option, you pay $75.65:
89 = 100
8.9 = 10
4.45 = 5
13.35 = 15
For the second option, you pay $93 - 20, so $73.
Thus, the second option is the better deal.