The Petersons decide that the Variable Cost per Copy is more complicated than in the current XerTech model in which supplies cost $.02 per copy and the average repair cost per copy is $.01. They now believe that the average repair cost per copy is more than proportional to the monthly number of copies made per copier. They estimate the relationship as below. Modify the XerTech model to incorporate this new information and prepare a report for the Petersons with these new results. MONTHLY DATA # of Copies/Copier (000's) 20 30 40 50 Repair Cost/Copier $50 150 400 1,000