Kaleb rode his bike at a rate of 10 mph for 2 hours and then 8 mph for 2 more hours. how far did he ride total? 16 miles 20 miles 30 miles 36 miles

what is the question here

step-by-step explanation:

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