n investment project has annual cash inflows of $4,600, $5,100, $5,600, and $6,600, and a discount rate of 13 percent. (Do not round intermediate calculations. Round the final answers to 2 decimal places.) a. What is the discounted payback period for these cash flows if the initial cost is $7,000? Discounted payback period years b. What is the discounted payback period for these cash flows if the initial cost is $9,000? Discounted payback period years c. What is the discounted payback period for these cash flows if the initial cost is $14,000? Discounted payback period years