1/5 x 2 1/5 will be 2 1/5.

less than

Step-by-step explanation:

1/5 x 2 1/5 = 11/25

2 1/5 as a mixed number is 11/5

so 11/25 is less than 11/5 therefore

1/5 x 2 1/5 < 2 1/5

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

d

step-by-step explanation: