Lenz father is paying for a $20 meal. He has a 15%-off coupon on his meal. After the discount, a 7% sales tax is applied. How much does Lynn’s father pay for the meal
First you have to subtract 15 from 100, giving you 85%. You then multiple 85% to the $20, giving you $17. You then add the 7 to 100, giving you 1.07%, then you multiple that to the $17 and you end up with $18.19.