Amount

An amount of lead pipe is to be made from 100 lbs. of lead. The pipe is to be 3/4 in. in diameter and 1/8 in. in thickness. Determine amount (in feet) of pipe produced.

Lead weighs 2/3 lb. per cu. in.

What is known:

100 lbs. of lead is to be made into pipe.
The pipe is to be 3/4 in. in diameter and 1/8 in. in thickness.
Lead weighs 2/3 lb. per cu. in.

Want to know:

Amount of pipe ( in feet) produced.

How do I proceed from this point?

Not homework.