Hi please help asap I really need this :( I have a time limit and I’d be grateful if you helped with a correct answer

the answer is 4 hours

Step-by-step explanation:

divide 28 by 7

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