please answer it asap

An investment project costs $14,900 and has annual cash flows of $3,700 for six years. a. What is the discounted payback period if the discount rate is zero percent? b. What is the discounted payback period if the discount rate is 3 percent? b. What is the discounted payback period if the discount rate is 3 percent? c. What is the discounted payback period if the discount rate is 21 percent