Answer:
C
Step-by-step explanation:
4x-8
Hope I helped. Please mark brainliest. Have a good day!
Which question and if you have the name of the assignment or it has a copy right at the bottom you can most likely find it online hope that helps
I suspect 4/2 should actually be 4/3, since 4/2 = 2, while 4/3 would make V the volume of a sphere with radius r. But I'll stick with what's given:





In Mathematica, you can check this result via
D[4/2*Pi*r^3, r]