P$4$ Risk$-$adjusted discount rates: Basic. Country Wallpapers is considering investing in one of three mutually exclusive

projects, E$,$ F$,$ and G$.$ The firm's cost of capital, r$,$ is $15\%,$ and the risk$-$free rate, RF$,$ is $10\%.$ The firm has gathered the basic

cash flow and risk index data for each project as shown in the following table.

a$.$ Find the net present value $($NPV$)$ of each project, using the firm's cost of capital. Which project is preferred in this

b$.$ The firm uses the following equation to determine the risk$-$adjusted discount

c$.$ Use the RADR for each project to determine its risk$-$adjusted NPV$.$ Which project is preferable in this situation?

d$.$ Compare and discuss your findings in parts a and $c.$ Which project do you recommend that the firm accept?