If a common stock has a beta of 0.754, the risk-free rate is 3% per annum and the market risk premium is 5% per annum, what is the required rate of return estimated by the CAPM for the common stock? How can a portfolio with the same beta be constructed if the portfolio invests only in the risk-free asset and an ETF that replicates the market portfolio? What would be the expected rate of return on that portfolio?