Dickson, Incorporated, has a debt$-$equity ratio of $2\mathrm{.}6.$ The firm's weighted average cost of

capital is $9$ percent and its pretax cost of debt is $7$ percent. The tax rate is $24$ percent.

a$.$ What is the company's cost of equity capital? $($Do not round intermediate

calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,$

$32\mathrm{.}16.)$

b$.$ What is the company's unlevered cost of equity capital? $($Do not round intermediate

calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,$

$32\mathrm{.}16.)$

c$.$ What would the company's weighted average cost of capital be if the company's debt$-$

equity ratio were $\mathrm{.}50$ and $1\mathrm{.}60?($Do not round intermediate calculations and enter

your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$