Kadin makes a snowman by stacking snowballs of radius 2 inches, 3 inches, and 6 inches. Assuming all his snowballs are spherical, what is the total volume of snow he uses, in cubic inches? Express your answer in terms of pi .
The answer to this is $4*2^2 \pi + 4*3^2 \pi + 4* 6^2 \pi$. This is then $196 pi$ $inches^3$. Also plz next tie use a calculator, plz do not take time out for other people. Thx!