Questions:

Fast Services Inc. has bonds with a par value of $$1,000$ and a coupon rate of $4\mathrm{.}8\%$ with semiannual payments. The current market price of the bonds is $$998,$ and there are eight years to maturity. What is this company's cost of debt?

Stocks of Fast Services Inc. are trading at $$50$ per share. The company recently paid a dividend of $$5\mathrm{.}1$ per share, expected to grow at an annual rate of $3\%.$ Calculate this company's equity cost using the constant dividend growth model.

Fast Services Inc. has a beta of $0\mathrm{.}98.$ If the risk$-$free rate is $3\mathrm{.}5\%$ and the market risk premium is $10\%,$ calculate this company's cost of equity capital according to the capital asset pricing model $($CAPM$)?$

Simple Corporation uses $60$ percent equity and $40\%$ debt in its capital structure. Its cost of equity is $12\mathrm{.}3$ percent, and the pretax cost of debt is $7\mathrm{.}4\%$ percent. What is the WACC if the corporate tax rate is $21$ percent?