Required:$1.$ Micro Advantage issued a $$5,650,000$ par value, $20-$year bond a year ago at $98($i$.$e$.,98\%$ of par value$)$ with a stated rate of $6\%.$ Today, the bond is selling at $115($i$.$e$.,115\%$ of par value$).$ If the firm$$s tax bracket is $30\%,$ what is the current after$-$tax cost of this debt?$2.$ Micro Advantage has $$5,390,000$ preferred stock outstanding that it sold for $$23$ per share. The preferred stock has a per share par value of $$24$ and pays a $$3$ dividend per year. The current market price is $$30$ per share. The firm$$s tax bracket is $30\%.$ What is the after$-$tax cost of the preferred stock?$3.$ In addition to the bonds and preferred stock described in requirements $1$ and $2,$ Micro Advantage has $78,000$ shares of common stock outstanding that has a par value of $$10$ per share and a current market price of $$160$ per share. The expected after$-$tax market return on the firm$$s common equity is $20\%.$ What is Micro Advantage$$s weighted$-$average cost of capital $($WACC$)?$