Answer: The third size has the best cost per ounce.
Explanation:
From the table it is noticed that the prices for various sizes of Health Crunch cereal are given in the right column and the size are given in left column.
The first size is 11 oz and the price is $4.75.
The cost of first size of Health Crunch cereal per ounce is,
[tex]\text{Cost per ounce}=\frac{4.75}{11}[/tex]
[tex]\text{Cost per ounce}=0.431818\approx 0.43[/tex]
The second size is 15 oz and the price is $4.85.
The cost of second size of Health Crunch cereal per ounce is,
[tex]\text{Cost per ounce}=\frac{4.85}{15}[/tex]
[tex]\text{Cost per ounce}=0.323333\approx 0.32[/tex]
The third size is 19.1 oz and the price is $5.89.
The cost of third size of Health Crunch cereal per ounce is,
[tex]\text{Cost per ounce}=\frac{5.89}{19.1}[/tex]
[tex]\text{Cost per ounce}=0.3083769\approx 0.31[/tex]
Since the cost per ounce of third size of Health Crunch cereal is least therefore the third size has the best cost per ounce.
