Assume that the T$-$bill rate is $5$ percent and the expected return on the S&P$500$ index fund is $10$ percent and use Yahoo finance as your data source in this question.

Today Ms$.$ Anderson invested $$30,000$ in an equally weighted portfolio of three stocks: COST, MSFT$,$ and JPM$.$

Find the required return on her portfolio using the theories and show all the data and calculations you used to earn full credit.