If y = 18, when x = 12, find y when x = 36.

The difference between y=18 and x=12 is 6 so that means that we are going to add 6 to the x=36 since the y is greater in the first one so y=42

Hi there! The answer is $47.79

First we need to find the amount including tax. Therefore we must multiply by 1.08 (since we pay 100% + 8% = 108%). We find
$37.50 × 1.08 = $40.50

Now we add the tip to the amount of money including taxes. To do this we must multiply by 1.18 (since we pay 100% + 18% = 118%). We find
$40.50 × 1.18 = $47.79

Hence, the group pay a total amount of money of $47.79