Dickson, Incorporated, has a debt$-$equity ratio of $1\mathrm{.}95.$ The firm's weighted average cost of capital is $9$ percent and its pretax cost of debt is $6$ percent. The tax rate is $21$ 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 debtequity ratio were $\mathrm{.}45$ and $\mathrm{.}95?($Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$