If you would like to know what is the amount of money Yul should leave for the tip, you can calculate this using the following steps:
20% of $14.50 = 20% * 14.50 = 20/100 * 14.50 = $2.9
Result: Yul should leave $2.9 for the tip.
<span>copper +copper = copper
0.14x+0.24(100-x) = 0.20*100 = 20</span>