Elgin Restaurant Supplies is analyzing the purchase of manufactuing machine that will cost $30.000. The annuat casti miflews me ar follows. Use Apeendix. D. a. Determine the IRR using interpolation. (Do not round PV factor. Round other intermediate calculntions to the nasta it whole dollar. Round the finol answer to 2 decimal places.) IRR b. With a cost of capital of 18 percent, should the machine be purchased? Yes No c. With information from part b, compute the Profitability Index. (Do not round PV factor. Round other intermediate colsulotions to the nearest whole dollar. Round the final answer to 3 decimal places.) Profitability Index