Stock Y has a beta of 0.85 and an expected return of 16.1 percent. Stock Z has a beta of 70 and an expected return of 7 percent. If the risk-free rate is 6.5 percent and the market risk premium is 11 percent, what are the reward-to-risk ratios of Y and Z? (Round your answers to 2 decimal places. Omit the "%" sign in your response.) Y z % %