PLS HELP ME ASAP WILL MARK BRAINLIEST AND GIVE 5 STARS IF RIGHT AND I WILL THANK YOU PLS HELP ME!!!!
A cylindrical rain barrel with a diameter of 3 feet and a height of 4.5 feet is filled to a height of 2.5 feet. How many more gallons of water can the barrel hold? Round your answer to the nearest whole number. (1 ft3≈7.5 gal)