An investment project costs $17,100 and has annual cash flows of $4,300 for six years. a. What is the discounted payback period if the discount rate is zero percent? Discounted payback period b. What is the discounted payback period if the discount rate is 4 percent? Discounted payback period c. What is the discounted payback period if the discount rate is 18 percent? Discounted payback period