The absolute value of negative one and one third is one and one third because to find the absolute value you just count the spaces from zero and an absolute value can never be negative so the absolute value is 1 and 1/3.
Okay, so we already have the volume equation for a cylinder here. Since we need to find the height(h), we need to basically isolate it in the equation. To do that we just have to divide both sides by (pi * r^2), where we end up with: then