The Zingstad Corporation is considering an investment with the following data (Ignore income taxes.): Cash inflows occur evenly throughout the year. The payback period for this investment is: 4.5 years 3.0 years 3.5 years 4.0 years Bau Long-Haul, Inc., is considering the purchase of a tractor-trailer that would cost $361,656, would have a useful life of 7 years, and would have no salvage value. The tractor-trailer would be used in the company's hauling business, resulting in additional net cash inflows of $59,000 per year. The simple rate of return on the investment in the tractor-trailer is closest to (Ignore income taxes.): \begin{tabular}{c} \hline 21% \\ \hline 16% \\ \hline 18% \\ \hline 27% \end{tabular}