McCann Company has identified an investment project with the following cash flows. Year 1 2 3 4 Cash Flow $ 850 1,040 1,280 1,170 a. If the discount rate is 11 percent, what is the present value of these cash flows? Present value at 11 percent b. What is the present value at 20 percent? Present value at 20 percent b. What is the present value at 20 percent? Present value al 20 percent c. What is the present value at 28 percent? Present value at 28 percent