Navarro Corporation has no debt but can borrow at $6\mathrm{.}1$ percent. The firm's WACC is

currently $8\mathrm{.}4$ percent, and the tax rate is $24$ percent.

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

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

b$.$ If the firm converts to $40$ percent debt, what will its cost of equity be$?($Do not

round intermediate calculations and enter your answer as a percent rounded to

$2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

c$.$ If the firm converts to $60$ percent debt, what will its cost of equity be$?($Do not

round intermediate calculations and enter your answer as a percent rounded to

$2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

d$-1.$ If the firm converts to $40$ percent debt, what is the company's WACC? $($Do not

round intermediate calculations and enter your answer as a percent rounded to

$2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

d$-2.$ If the firm converts to $60$ percent debt, what is the company's WACC? $($Do not

round intermediate calculations and enter your answer as a percent rounded to

$2$ decimal places, e$.$g$.,32\mathrm{.}16.)$