If you're not including tax, here's how you will do it: 15% can be converted to .15 you would then multiply .15 by 75.50 .15 * 75.50 = 11.325 since you can't give someone half of a penny, you must round up, getting 11.33 now you add 11.33 to 75.50 11.33 + 75.50 = 86.83 so, her bill would come out to be $86.83 Don't forget the "$" sign! Hope I helped! Write a comment or message me if you have any more questions!
