$5\mathrm{.}5$ Comparing Mutually Exclusive Alternatives Consider the two mutually exclusive investment projects each with a MARR of $\backslash (9\backslash \%\backslash ).$ Projects' Cash Flows On the basis of NPW criterion: a$)$ what is the PW of project A$,$ round to the nearest cent and omit the dollar sign $($can include negative sign if appropriate$)?$ type your answer... b$)$ what is the PW of project B$,$ round to the nearest cent and omit the dollar sign $($can include negative sign if appropriate$)?$ type your answer... c$)$ which project would you choose, if any and why