Answer:
After the tip you would leave $43.20
Explanation:
In order to find this, we must first find 20% of 36. In order to do that, you must multiply them together (don't forget to turn the percentage into a decimal first).
36 * .20 = 7.20
Now we can add the total amount pre-tip and the tip amount to find the overall total.
$36 + $7.20 = $43.20