Calculation of individual costs and WACC BlackRock, Inc. $($BLK$)$ has a capital structure that consists of common stock equity and debt. The market capitalization of its equity is $$76\mathrm{.}644$ billion and its debt has a market value of $$6\mathrm{.}797$ billion.

a$.$ Calculate the market value weights for BLK$\text{'}$s capital structure,

b$.$ Calculate BLK$\text{'}$s cost of equity using a beta of $1\mathrm{.}26,$ a risk$-$free rate of $0\mathrm{.}78\%,$ and a market risk premium of $6\mathrm{.}70\%,$

c$.$ Calculate BLK$\text{'}$s cost of debt using a bond price of $$1,067\mathrm{.}77,$ semi$-$annual coupon payment of $$28\mathrm{.}75,$ and $5$ years to maturity.

d$.$ Calculate BLK$\text{'}$s current WACC using a $21\%$ corporate tax rate.

a$.$ The market value weight of long$-$term debt in BLK$\text{'}$s capital structure is $\%.($Round to two decimal places.$)$