You are charged $16.05 after tax for a meal. Assume sales tax is 7%, what was the menu price for the meal

First divide the tax by 100.

7/100 =.07

Then add 1 because its a tax increase.

1 +.07 = 1.07, which is your rate.

Then multiply the rate with the starting amount.

16.05 (1.07) = 17.17

$ 17.17 is the answer.