If the price of a gallon of gas increases from $3.20 to $3.68, what percent did it increase?
A. 15%
B. 10%
C. 115%
D. 12%
If the price of a gallon of gas increases from $3.20 to $3.68, what percent did it increase?
A. 15%
B. 10%
C. 115%
D. 12%