Uh it can really be anything. You should try and be more specific: see if you did the whole problem.
Volume of Sphere = (4/3)*(pi)*(r^3)
r = (D/2) = 6 m
=<span>(4/3)*(pi)*((6^3)
= 904.7786.. m^3
I hope this helps.</span>
18/27 is the fraction you just said it
