Question

Sierra left $17.75 as a tip for a waiter. This was 20% of the bill before the tip. How much was her total bill before the tip

Answer 1

17.75 / 0.2 = 88.75

Check: 88.75 x 0.2 = 17.75

Answer 2

$31.95 Before tip.

Explanation:

I believe you should just add 17.75+80%=31.95