please providea step-by-step solution for this problem

Consider the following information: Rate of Return If State Occurs State of Economy Boom Bust Probability of State of Economy Stock A 20 Stock B 17 10 Stock C 35 -06 a. What is the expected return on an equally weighted portfolio of these three stocks? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Expected return b. What is the variance of a portfolio invested 16 percent each in A and B and 68 percent in CQ (Do not round intermediate calculations and round your answer to 6 decimal places, e.g., 32.161616.) Variance