What times 4 minus 2 divided by 30 equals 68

510.5 or as a fraction, 1021/2

Step-by-step explanation:

4x-2/30 = 68

times both sides by 30 and you get

4x-2=2040

add two to both sides

4x = 2042

then divide both sides by 4 and you get

x=510.5

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