Consider the following uneven cash flow stream: Year 0: $0 Year 1: $250 Year 2: $400 Year 3: $500 Year 4. $600 Year 5: $600 a. What is the present value if the discount rate is 10 percent? b. Add a cash outflow for cost) of $1,000 at Year 0. What is the present value (or net present value) of the total cash flow stream now