Answer:
7-ounce
Explanation:
You want to buy some beans. A 7-ounce package costs $2.73. A 12-ounce package costs $4,80. An 18-ounce package costs $7.38. Which package is the best buy?
7-oz: 2.73/7 = $0.39 per ounce
12-oz: 4.80/12 = $0.40 per ounce
18-oz: 7.38/18 = $0.41 per ounce
7-ounce is the best price at $0.39 per ounce.