Answer:
gallon.
Explanation:
Amount of orange juice Tony had is
gallons.
Amount of orange juice drank by him is
of the orange juice he had.
To find the amount of orange juice Tony drink, we need to first convert the amount of orange juice Tony had in improper fraction, as the amount of juice he had is given in Mixed fraction.
So, amount of orange juice Tony had is
gallons.
Now, to find the amount of orange juice Tony drink, we need to multiply
and

So, amount of juice Tony drink is


Hence, amount of orange juice Tony drink is
gallon.