The correct answer is C-6 and two thirds
1/2 + 1/4 is 3/4 gallons. converted into sixteenths, that is 12/16 gallons which is 12 servings
You take the amount paid and divide it by the amount of cheese. So 10.50 divided by 2.5 equals 4.2 and 12.60 divided by 3 equals 4.2 meaning that one pound of cheese costs $4.20
R'S' is equal in length to RS.
length doesnt change, it was just rotated.
