Use the following information about Rex Inc. for problems $1-6.$

Common stock: $500,000$ shares outstanding. $$30$ per share, beta$=1\mathrm{.}6$

Bonds: $4,000$ bonds outstanding, $$1,000$ face value each, $4\mathrm{.}5\%$ coupon paid semiannually, $9$ years to maturity, bond quote of $95.$

Market risk premium$=8\%,$ yield on $30$ day Treasury Bill$=3\mathrm{.}5\%,$ Tax rate $=21\%$

Question $1$

What is Rex Inc's Weight of Debt?

Question $2$

What is Rex Inc's Weight of Equity?

Question $3$

What is Rex Inc's Before Tax Cost of Debt?

Question $4$

What is Rex Inc's After Tax Cost of Debt?

Question $5$

What is Rex Inc's Cost of Equity?

Question $6$

What is Rex Inc's WACC?