Calculate the unit rate for each option of Takis, explain which option is better,
and why?

.42 for left bag .22 for right bag

(1st explanation is the left bag and the 2nd in the right bag)
Explanation: If the bag is $1.68 for 4oz of takis and you want to find the unit rate you do 1.68 divided by 4 which equals $0.42 per oz of takis.
2nd Explanation: If its $4.42 for 20 oz of takis do 4.42 divided by 20 which equals $0.22.

Explanation for the teacher (I saw the worst words ever, "why?": The right bag of takis are the best value since the left bag is a little bit less than twice the right bag.

So if boys is 6 and girls is 15 it would be 6/15, but that can be simplified to 2/5.