Suppose you have invested $ 35,000 in stocks with a beta of 0.9 and another $ 17,000 invested in stocks with a volatility (beta) of 3.2%. Determine the volatility percentage (beta) of the portfolio.

Suppose the risk-free rate is 7.7% and the market return is 10%. Calculates the expected rate of return on a stock with a volatility (beta) of 3%.

Determine the expected rate of return for Campo Industries, assuming that the inflation rate will be 3.2%. Also, the risk-free rate is 2.2% and the market risk premium is 5.1%. The company has a beta of 1.7% and the rate of return for the last 4 years has been 7.6%.