Answer:
37.92/3=12.64 one galon costs $12.64
The answer is 135...............
Easiest way to work it out is to divide by ten, that gives 10% of your original number. Multiply that by two to get 20% and minus that from the original number to get the discount.
450/10 = 45 which is 10% of 450.
20% of 450= 10% x 2 or 45 x 2
therefor 20% of 450 is 90.
450-90 = the discount the shoppers recieve.
The answer is 1. I got this by dividing 118 by 9 and the 9 times 13 which equals 117. 117+1= 118