Greatest common factor of each set of numbers: 21,35,49

7

Step-by-step explanation:

21 = 3*7

35= 5*7

49 = 7*7

The greatest common factor is 7

GCF=7

Step-by-step explanation:

21=7*3

35=7*5

49=7*7

If you notice, 7 appears each time as a factor of each number, so your answer is 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

$15 each

step-by-step explanation:

$45/3 children= $15 each