3) Rug Cleaning Machines Kelly Karpet Kleaners sells rug machines. The EZ model weighs 10 lb and comes in a 10-cubic foot box. The compact model weighs 20 lb and come in an 8-cubic foot box. The commercial model weighs 60 lb and comes in a 28-cubic foot box. Each of their delivery vans has 248 cubic feet of space and can hold a maximum of 440 lb. In order for a van to be fully loaded, how many of each model should it carry?