Stock A has a beta of 1.7 and has the same reward-to-risk ratio as stock B. Stock B has a beta of 0.8 and an expected return of 12 percent. What is the expected return on stock A if the risk-free rate is 4.5 percent?
A portfolio that consists of $8,102 in stock A, $4,172 in stock B, $13,398 in stock C, and $5,638 in stock D. What is the portfolio weight (in percents) of stock D?