I NEED HELP FIND THE ANSWER TO A AND B. THANK YOU

The market risk premium is 7 percent, and the risk-free rate is 4 percent. a. Calculate the beta of each stock. (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) b. Calculate the standard deviation of each stock. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) c. Which stock has the most systematic risk? d. Which one has the most unsystematic risk? e. Which stock is "riskier