Hey guys, it's me again. I came across a pre-calculus problem in some homework and can't finish it. The problem gives you Archimedes' principle:

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(π/3)(3rh2 – h3)dL = 4/3πr3ds

Where dL = 62.5lb/ft3

If r = 5 and ds= 20 lb/ft3

What is h = ?

I know the answer should come out approximate... If anyone could explain to me how to reach the answer, I would be very grateful!