you are director of memc and a tranee proposed that the discound rate wacc for investment shouldbe $10\mathrm{.}25\%$ considering company is a mining company so you argue something is wrong with a proposed discount rate therefore you have to find the approprite discount rate and help the tranee fix any errors the data is given below memc has $7\mathrm{.}3$ million share of common stock outsdanding $220000$ of $4\mathrm{.}5\%$ prefferd stock outstanding and $1200006\mathrm{.}5\%$ semi annual bonds outstanding $,$par value of $1000$ each the common stock currently sell for $46$ per share and has beta of $\mathrm{.}95$ the prefferd stock currently sell for $91$ per share and the bonds have $15$ years to mature and sell for $107$ percent of par. the market risk perimum is $7\%,$ t bills are yielding $3\mathrm{.}6\%$ and memc's tax rate is $35\%$ as an expert decided to show and explain your calculations to tranee