please help me with these questions,

thank you!

Consider the following information: Calculate the expected return. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Consider the following information: a. Calculate the expected return for Stocks A and B. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g.. 32.16.) b. Calculate the standard deviation for Stocks A and B. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Consider the following information: a. What is the expected return on an equally weighted portfolio of these three stocks? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What is the variance of a portfolio invested 24 percent each in A and B and 52 percent in C? (Do not round intermediate calculations and round your answer to 6 decimal places, e.g., 161616.) Stock Y has a beta of 1.4 and an expected return of 16.5 percent Stock Z has a beta of 7 and an expected return of 9.8 percent. If the risk-free rate is 59 percent and the market risk premium is 6.9 percent, the reward-to-risk \begin{tabular}{|l|l|l|l|l|} \hline ratios for Stocks Y and Z are & percent, Stock Y is & and & and Stock Z is \\ \hline the SML reward-to-risk is & & pespectively Since \\ \hline (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) \\ \hline \end{tabular}