please answer this

The incremental cash ow between alternatives 21 and Z2 is shown below (22 has the higher initial cost). Use an AW-based rate of return equation to determine the incremental rate of return and which alternative should be selected, if the MARR is 17% per year. Let k = year 1 through 10. Incremental Year Cash Flow, $122 ll! 0 40,000 110 9000 500k