$7\mathrm{.}41$ Consider the two mutually exclusive investment alternatives given in Table P$7\mathrm{.}41.$

$($a$)$ Which project would be selected based on the rate of return decision criterion? $($Assume that MARR $=15\%.)$

$($b$)$ Determine the MIRR on the incremental investment. Which project would be chosen at MARR $=15\%?$

TABLE P$7\mathrm{.}4$I

$\backslash$table$[[,$Net Cash Flow$],[n,$Project $A_1,$Project $A_2$

$($It$\text{'}$s better if you solve it on a paper and showing all steps$)$