math
posted by Brandi .
A water delivery truck with a cylindrical tank measuring 8 ft in diameter and 8 ft long dispenses
water to drought victims in cartons measuring 6 in. × 6 in. × 12 in. How many victims will get a full
container of water?

Bring everything to feet as a unit, so the cartons are
.5 * .5 * 1 cu. ft. = 0.25 cu.ft.
For the tank, it's pi r^2 h again:
pi * 16 * 8
= 128 pi cu. ft.
So how many containers will that fill?