Find the value of x in the following proportion: 6 : 9 = x : 72

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation:

i believe it's a.

i'm not sure on this one, most likely correct.

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya