1) Volume of each ball: [4/3]π(r^3) = [4/3]π(2.25/2)^3 = 5.96 in^3
2) Volume of 3 balss: 3*5.96 in^3 = 17.88 in^3
3) Volumen of the cylindrical can: [πr^2]h = π(2.25/2)^2 * 6.75 = 26.82 in^3
4) Empty space: 26.82 in^3 - 17.88 in^3 = 8.94 in^3
1. write the conversion as a fraction (that equals one).
2. multiply it out (leaving all units in the answer).
3. cancel any units that are both top and bottom.
The answer is 8 thank me later ;)
