PLEAS Explain formulas used, THE SINGLE DLSU

The following cash flows should be used to complete Problems $1-4$

Edison Electric has two projects that are mutually exclusive and have the following projected cash flows:

Please compute the NPV and IRR for each project. Investors demand a $14$ percent rate of return on their invesume in$,$ I.c$.,\text{'}$c

Edison Electric's cost of capital, $r_c,$ equals $14$ percent, what is the Net Present Value $($NPV$)$ of Project A$?$

A$.$ $$288,204$

B$.$ $$149,750$

C$.$ $$105,921$

CoC

D$.$ $$88,969$

E$.$ $$45,364$

What is the Internal Rate of Return $($IRR$)$ of Project A$?$

A$.32\mathrm{.}7$ percent

B$.28$ percent exactly

C$.21\mathrm{.}2$ percent

D$.24$ percent exactly

E$.$ Less than $1$ percent

Edison Electric's cost of capital, $r_c,$ equals $14$ percent, what is the Net Present Value $($NPV$)$ of Project B$?$

A$.$ $$182,760$

B$.$ $$139,340$

C$.$ $$122,100$

D$.,-$$$32,711$

E$.-$$$17,232$

What is the Internal Rate of Return $($IRR$)$ of Project $B?$

A$.$ Exactly $18$ percent

B$.$ Just under $16$ percent

C$.$ Just over $12$ percent

D$.$ Just under $12$ percent

E$.$ Exactly $10$ percent