The common stock of Buildwell Conservation & Construction Incorporated $(BCCl)$ has a beta of $0\mathrm{.}9.$ The Treasury bill rate is $4\%,$ and

the market risk premium is estimated at $10\%.$ BCCl$\text{'}$s capital structure is $20\%$ debt, paying an interest rate of $7\%,$ and $80\%$ equity. The

debt sells at par. Buildwell pays tax at $21\%.$

a$.$ What is BCCl$\text{'}$s cost of equity capital?

Note: Do not round intermediate calculations. Enter your answer as a percent rounded to $2$ decimal places.

b$.$ What is its WACC?

Note: Do not round intermediate calculations. Enter your answer as a percent rounded to $2$ decimal places.

c$.$ If $BCCl$ is presented with a normal project with an internal rate of return of $12\%,$ should it accept the project if it has the same

level of risk as the current firm?