Question

A restaurant customer left ​$1.30 as a tip. The tax was 8% and the tip was ​10% of the cost including tax.

a. Which information is not needed to compute the bill after tax and​ tip?
b. What was the total​ bill?

Answer 1

the tax is $0.90. We don't need to know that the tax was 8% of the bill in order to get these equations. the total bill was 9.9