1. Dog Up! Franks is looking at a new sausage system with an installed cost of $900 which will be fully depreciated straight-line over the project's 3-year life and then scrapped for $150. The system will save the firm $280/year in pretax operating costs, and the system requires an initial investment in a constant level of net working capital of $65. If the tax rate is 21% and the discount rate is 9%, what should the firm do?