8.44 Helical Systems, Inc. uses a minimum attractive rate of return of 8% per year, compounded annu- ally. The company is evaluating two new pro- cesses for improving the efficiency of its manu- facturing operation. The cash flow estimates associated with each process are shown below. A correct equation to use for an incremental rate of return analysis is: Process 1 Process First cost, $ Annual cost, $ per year Salvage value, $ Life, years - 40,000 -15,000 5,000 3 -50,000 - 12,000 6,000 3 (a) 0 = -10,000 + 3000(P/A,A1* 3) + 1000(P/F,A1,3) (b) 0 = - 40,000(A/P,A1*,3) - 15,000 + 5000(A/FA1,3) () 0 = -50,000(A/P,A1* 3) 12,000 + 6000(A/FA1,3) (d) 0 = -10,000 3000(P/A,A7,3) + 1000(P/FA1*,3) Use excel function (IRR) to find appropriate it for process I and J