Tony was asked to bring root beer for root beer floats to the end of year class party. He is only given so much money for his budget. He finds a 64 oz.

To calculate the unit rate price per ounce of the root beer, you divide the total price by the number of ounces.

The total price for the 64 oz bottle is $3.20.

Unit rate price per ounce = Total Price / Total Ounces

Unit rate price per ounce = $3.20 / 64 oz = $0.05 per ounce.

Therefore, the correct response is $0.05.