I need the answer for b , c-1 and c-2.

PLEASE HELP

Check my work Consider the following information about three stocks: State of Economy Boom Normal Bust Probability of State of Economy 0.25 0.40 0.35 Rate of Return if State Occurs Stock A Stock B Stock C 0.28 0.40 0.52 0.11 0.09 0.07 0.02 -0.22 -0.42 a-1. If your portfolio is invested 35% each in A and B and 30% in C, what is the portfolio expected return? (Do not round intermediate calculations. Enter the answer as a percent rounded to 2 decimal places.) Portfolio expected return 6.63% a-2. What is the variance? (Do not round intermediate calculations. Round the final answer to 8 decimal places.) Variance 0.0511713 a-3. What is the standard deviation? (Do not round intermediate calculations. Enter the answer as a percent rounded to 2 decimal places.) Standard deviation 22.62% b. If the expected T-bill rate is 3.20%, what is the expected risk premium on the portfolio? (Do not round intermediate calculations. Enter the answer as a percent rounded to 2 decimal places.) Expected risk premium % C-1. If the expected inflation rate is 2.10%, what are the approximate and exact expected real returns on the portfolio? (Do not round intermediate calculations. Enter the answers as a percent rounded to 2 decimal places.) % Approximate expected real return Exact expected real return % c-2. What are the approximate and exact expected real risk premiums on the portfolio? (Do not round intermediate calculations. Enter the answers as a percent rounded to 2 decimal places.) % Approximate expected real risk premium Exact expected real risk premium %