Adamson Corporation is considering four average$-$risk projects with the following costs and rates of return: ProjectCost Expected Rate of Return $116\mathrm{.}00\%$ $ $2,0003,00015\mathrm{.}005,00013\mathrm{.}752,00012\mathrm{.}50$ The company estimates that it can issue debt at a rate of r$\_\{$A$\}=10\%$ and its tax rate is $25\%.$ It can issue preferred stock that pays a constant dividend of $$4\mathrm{.}00$ per year at $$59\mathrm{.}00$ per share. Also, its common stock currently sells for $ $47\mathrm{.}00$ per share; the next expected dividend, D$\_\{1\}$ $$5\mathrm{.}25$ ; and the dividend is expected to grow at a constant rate of $6\%$ per year. The target capital structure consists of $75\%$ common stock, $15\%$ debt, and $10\%$ preferred stock a $.$ What is the cost of each of the capital components? Do not round intermediate calculations. Round your answers to two decimal places. Cost of debt: Cost of preferred stock:$\%$ Cost of retained earnings: b $.$ What is Adamson's WACC? Do not round intermediate calculations Round your answer to two decimal places. $\%$ Only projects with expected returns that exceed WACC will be accepted $.$ Which projects should Adamson accept? $-$Select$--$Select$-$ Project $1$ Project $2$ Project $3$ Project $4-$Select $--$Select$-$