1. A stock has an expected return of 12 percent, the risk-free rate is 7.8 percent, and the market risk premium is 7 percent. The beta of this stock must be_______ . (Round your answer to 2 decimal places. (e.g., 32.16))

2. A stock has an expected return of 11 percent, its beta is 0.45, and the risk-free rate is 4.4 percent. The expected return on the market must be _____percent. (Do not include the percent sign (%). Round your answer to 2 decimal places. (e.g., 32.16))

3. You own a stock portfolio invested 25 percent in Stock Q, 20 percent in Stock R, 20 percent in Stock S, and 35 percent in Stock T. The betas for these four stocks are 1, 0.91, 1.54, and 0.85, respectively. The portfolio beta is________ . (Round your answer to 2 decimal places. (e.g., 32.16))