Question how to solve this math problem thats mostly letters

I dont know how to do problems like this so if you could please explain:

w=#r(2)h solve for h. The # stands for pie and the (2) stands for squared. So it would be w= pie X r squared X h. Please help and I will give you 5 stars :)

w = pir^2h

DIVIDE both sides by pir^2

w / pir^2 = h ANSWER

Isolate h by dividing by pi * r^2.
This gives you w / (pi * r^2) = h
pi * r^2 is the formula for the area of the circle, so the answer is either...
w / (pi * r^2) = h
OR
w / A = h