Strolling Corporation is constructing its Cost of Capital schedule. The firm is at its target capital structure. Its $15$ year bonds have a $4\mathrm{.}5\%$ coupon rate and sell for $$990.$ Bond coupons are semi$-$annual. Rolling's stock beta is $1\mathrm{.}3,$ the risk$-$free rate is $3\mathrm{.}0\%,$ and the market risk premium on the market portfolio is $7\mathrm{.}0\%.$ Rolling is a constant growth firm, and just paid a dividend of $$1\mathrm{.}50.$ The stock sells for $$35\mathrm{.}00$ and has a growth rate of $5\mathrm{.}1\%.$ The firm's tax rate is $20\%.$ The firm's book value balance sheet is as follows: Assets $$35,600,$ Long Term Debt $$36,000,$ Equity $($$$1\mathrm{.}00$ par$)$ $$3,874,$ Retained Earnings $-$$$4,274,$ Comprehensive Income $1,500.$ To the nearest $\mathrm{.}1\%,$ what is the weight of debt that should be used in computing the Weighted Average Cost of Capital?

To the nearest $\mathrm{.}1\%,$ what is the pre$-$tax cost of debt?

To the nearest $\mathrm{.}1\%,$ what is the cost of retained earnings using the Constant Growth Model?

To the nearest $\mathrm{.}1\%,$ what is the cost of equity using the Capital Asset Pricing Model?

Using your Capital Asset Pricing Model cost of equity, to the nearest $\mathrm{.}1\%,$ what is Strolling's Weighted Average Cost of Capital?