An Investment project has annual cash inflows of $4,200,$4,700,$5,200, and $6,200, and a discount rate of 11 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 Jyears b. What is the discounted payback period for these cash flows if the Initial cost is $8,500 ? Discounted payback period years c. What is the discounted payback period for these cash flows if the initial cost is $13,000 ? Discounted payback period years