Mitch needs to purchase soft drinks for a staff party. He is trying to figure out if it is cheaper to buy the 12-pack of soda or the 20-pack of soda. The 12-pack of soda cost $3.99, and the 20-pack of soda cost $5.48. i. Which pack should Mitch chose? ii.What is the difference in cost between single cans of soda from each of two packs?