; ) PLEASE HELP!!
Which expression is equivalent to 18 1/5 - ( -22 2/5 ) - ( -40 1/5 )
A. 18 1/5 - 22 2/5 - 40 1/5

B. 18 1/5 + ( -22 2/5 ) + ( -40 1/5 )

C. -18 1/5 - 22 2/5 + 40 1/5

D. 18 1/5 + 22 2/5 + 40 1/5

D. 18 1/5 + 22 2/5 + 40 1/5

Step-by-step explanation:

Double negative makes a positive, so the -(-x), where x is a positive number, is +x. That makes the answer D

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