The common stock of Buildwell Conservation & Construction Incorporated $($BCCI$)$ has a beta of $0\mathrm{.}9.$ The Treasury bill rate is $4\%,$ and the market risk premium is estimated at $9\%.$ BCCI$$s capital structure is $21\%$ debt, paying an interest rate of $6\%,$ and $79\%$ equity. The debt sells at par. Buildwell pays tax at $21\%.$

a$)$ What is BCCI$$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 BCCI is presented with a normal project with an internal rate of return of $10\%,$ should it accept the project if it has the same level of risk as the current firm?