She paid $3.28 per gallon.
24.60 divided by 7.5 equals 3.28.
the numbers are being divided by 4 so 12/4 =3
next number is 3
Paul spent $6 on the student discount card. 23 times 1.60 equals 36.80. Subtract that from 42.80 and you get 6
to get the inverse of any expression, we start off by doing a quick switcheroo on the variables and then solve for "y".
