Jenny wants to buy cereal that comes in large and small boxes. the 32-ounce box costs $4.16, and the 14-ounce box costs $2.38. which box is less expensive per ounce?

The large box is less expensive per ounce.  
  

               large box             small box
cost             4.16                    2.38
content        32oz                   14oz

cost/oz       0.13                      0.17
                 *4.16/32                *2.38/14

The large box is less expensive than the small box. The large box is cheaper by 0.04 per ounce.