A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 10% off of their total dinner bill, not including applicable sales tax or their server’s tip. The bill totals $157.30 before tax and tip. What is the new total after the server applies the 10% off coupon?

Question

Mercury · Answer

they get 10% off the pre-tax, pre-tip total
so they get 10% off 157.30 (or 0.10 * 157.30). subtract this from the original 153.70 to get the discounted total.