Answer:
361 gallons
Step-by-step explanation:
The volume of the empty space is a cylinder with a radius of 1.75 feet and a height of 5 feet. Its volume is given by ...
V = πr^2h = π(1.75 ft)^2·(5 ft) = 15.3125π ft^3
The number of gallons this space will hold is ...
(15.3125π ft^3)(7.5 gal/ft^3) ≈ 361 gal
The barrel can hold about 361 gallons more.
