Algebra 1 word problem

Question

the bits of o mints company sells tins that contain 24 cylindrical mints that are 1 cm wide, and ½ cm tall. The mints are arranged 4 wide, 3 deep, and 2 high and fit snugly into their rectangular prism tin. How many cubic centimeters of space in the tin are empty?

Answer 1

The volume of a mint is π/2

The total volume of mints is 12π

 

The volume of the tin is 24

 

What is 24 - 12π?