Question

Clayton left a 15% tip for the waitress. If the amount of the tip was $3.30, how much was the bill before the tip?

Answer 1

Begin by setting up a proportion.
 3.3    x
  15   100
Cross multiply.
3.3*100 is 330
330/15 is 22
The bill was $22 before the tip

Answer 2

The amount is $22.00