Paper Calculation

This is my first post as I am in need of assistance!

There is a paper company that makes rolls of paper to different shapes and sizes. New customer is wanting a 52#/MSF roll of KLB (Kraft Liner Board) to be converted and cut down into smaller ribbons for their factory. The roll diameter is going to be at 40" and the core diameter is 3". The width is 3.5625".

The customer asks for 286m2 of the product. The paper company is only able to bill and ship in tons. How to you calculate the tons needed by the customer?

 

First, why in the world is this posted under "Differential Equations"? Second, in order to do this problem, you will need to know the density of a "52#/MSF roll of KLB" which is rather specialized knowledge! Was that given in the problem?