Brenda wants to buy one of the three cereals listed below. Which box of cereal is the Best Buy? Show and explain how you determined this.
1) 16 ounces of Frosted Flurries for $3.50
2) 12.2 ounces of Chocolate O's for $2.42
3) 11.5 ounces of Cinnamon Grahams for $2.35