Expected Return Beta Stock A $10\mathrm{.}50\%1\mathrm{.}2$ Stock B $130\mathrm{.}98$ Stock C $15\mathrm{.}71\mathrm{.}37$ Market $14\mathrm{.}21\mathrm{.}00$ a$.$ Write the market model equation for each stock? b$.$Assume a portfolio has weights of $30$ percent Stock A$,45$ percent Stock B$,$ and $25$ percent Stock C$?$ c$.$ Suppose the return on the market is $15$ percent and there are no unsystematic surprises in the returns. What is the return on each stock? What is return on portfolio?