A friend tips you off on a hot stock: Sure Thing Mines Ltd. You only have $10,000 to invest but you want to invest more. Assume that you can borrow an additional $5,000 by short-selling the risk free asset (issuing T-Bills). You purchase $15,000 worth of shares in Sure Thing Mines Ltd. The expected returns and standard deviations of the two assets are outlined in the table below: Asset T-Bills Sure Thing Mines Expected Return. 5.5% 15% Beta 0 1.70 What is the expected return of the portfolio?