please show how to do this on a financial calculator, thanks!

29. Haig Aircraft is considering a project that requires some initial investment today (t-0). The project will generate positive cash flows of $60,000 a year at the end of each of the next five years (from -l to t-5). The project's NPV is S75,000 and the company's WACC is 10 percent. What is the project's regular payback? a. 2.54 years b. 3.08 years c. 3.79 years d. Cannot be solved because the initial investment is not given e. None of the above