Comparing Mutually Exclusive Projects $[LO1]$ Rust Industrial Systems Company $is$ trying $to$ decide between two different

conveyor belt systems. System A costs $$315,000,$ has a four$-$year life, and requires $$81,000in$ pretax annual operating costs. System

$B$ costs $$365,000,$ has a six$-$year life, and requires $$83,000in$ pretax annual operating costs. Both systems are $tobe$ depreciated

straight$-$line $to$ zero over their lives and will have zero salvage value. Whichever project $is$ chosen, $it$ will not $be$ replaced when $it$

wears out. $If$ the tax rate $is21$ percent and the discount rate $is8$ percent, which project should the firm choose?