** where "r" is radius and "h" is height **

as it refers to the volume of cone being 1/3 of the the volume of cylinder
Hardest, example:
given height of cone is 69 km and radius is 48 km
using the formula:



658,008 .........................
3ft = 3ft*12 in/1ft = 36 inches
36 inches divided by 3/4 inch
copy dot flip
36 * 4/3=
12*4
48
48 books will fit
D is the answer because -10 plus -6 will give you the middle number -16.