20% tip.. and the total bill is $35.60. So you would find 20% of 35.60.
(Side note: "of" in these scenarios is always "x" or multiplication)
20% x 35.6
or 0.20 x 35.60
0.2 x 35.6 (make sure to move two decimal places after this)
356
x 2
------
712 The answer is 712--but you have to move two decimal places to the left. So that would be 7.12.
The answer is 7.12. :) he should leave $7.12 for the tip.
Just so you are able to do this in the future, here is an example problem.
___ leaves a tip of ___% off of 10 dollars.
Always multiply the ___% by the amount the person is paying (10 dollars)
If the tip is 10%, then the decimal would be 0.10 (or 0.1, same thing). If the tip is 9%, then the decimal would be 0.09. Let's say the tip is 10%.
0.10 x 10 = $1.00
They would leave a tip of 1 dollar.
Hope that helps!
xx