A cylindrical-shaped swimming pool has a diameter of 10 feet and a height of 4 feet. Approximately how many gallons of water will it take to fill the pool 1 foot from the top?

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

so mark-up is 0.4 multiplied by 180 = 72