3) (15 points) EOY 0 1 2 3 4 5 6 7 8 Net Cash Flow -$18,000 +$1,800 +$2,160 +$2,592 +$4,100 +$2,700 +$3,000 +$3,300 +$3,600 For the cash flow profile given above, an expression showing the present worth for an interest rate of 5% per year compounded annually is PW = (P/A1 5%, + (P/F 5%, (PA 5%, + (P/G 5%, (PF 5%