The part of the question that says to 12.3 is just about using the CAPM, the problem is I dont know how to use this in the question so I was hoping someone could me find the returns for the stocks aswell as the treasury bill rate. Thanks!

Betas and Expected Stock Returns. You can find estimates of stock betas by logging on to finance.yahoo.com and looking at a company's profile. Try comparing the stock betas of Google (GOOG), The Home Depot (HD), Du Pont (DD), Aluia Group (MO), and Caterpillar (CAT). Once you have read Section 12.3, use the capital asset pricing model to estimate the expected return for each of these stocks. You will need a figure for the current Treasury bill rate. You can find this also on finance.yahoo.com by clicking on Bonds-Rates. Assume for your estimates a market risk premium of 7%