Dorothy Shrills is considering an expansion of one of its existing buildings to add more manufacturing space for its kid-friendly noisemakers. Several possible scenarios exist for future cash flows, as follows. 1. Construction costs of $504,000; steady sales and costs each year, netting to an annual operating cash inflow of $70,000; the expansion would have no salvage value at the end of its 10-year useful life (the building would be repurposed for a different product). 2. Construction costs of $504,000; rising and then falling net cash flows each year for 10 years, as follows: $49,000 for the first 2 and last 2 years, $174,000 for years 35, and $101,000 for years 6-8. 3. Construction costs of $709,000; no cash flows in year 1,$74,000 in years 2 and 3,$151,000 in year 4,$102,500 in years 5-8, and $51,000 in the last 2 years. (a) Calculate the simple payback period for all three scenarios. (Round answers to 2 decimal places e.g. 15.25.)