Answer:
To determine which size gets you more frozen yogurt per dollar, you need to calculate the cost per unit of frozen yogurt for each size. To do this, you can divide the price of the frozen yogurt by the size of the serving in ounces.
In this case, the cost per unit for the extra large 12 ounce frozen yogurt is $6.72 / 12 ounces = $0.56 per ounce.
If you are considering another size of frozen yogurt, you can use the same calculation to determine its cost per unit. For example, if the medium 8 ounce frozen yogurt costs $4.50, its cost per unit would be $4.50 / 8 ounces = $0.56 per ounce.
So, in this case, the extra large and medium sizes of frozen yogurt have the same cost per unit, so they are equal in terms of the amount of frozen yogurt you get per dollar.
Explanation: