A cylindrical oil tank holds 510 gallons when it is filled to its full

height of 8.0 ft. When it contains oil to a height of 3 ft 9 in, how

many gallons are in the tank?

298.2 gal

302.4 gal

277.9 gal

239.1 gal

Step-by-step explanation:

8 ft = (12 * 8) = 96 inches

3 ft 9 in = (12 * 3) + 9 = 45 inches

510 gallons to 96 inches = x gallons to 45 inches

510 / 96 = x / 45 ... cross multiply because this is a proportion

(96) (x) = (510) (45)

96x = 22950

x = 22950 / 96

x = 239.0625 rounds to 239.1 gallons <===