what is the expected return on an equally weighted portfolio of these three stocks?

what is the variance of a portfolio invested 15% eacg in A and B AND 70% in C

Consider the following information: Rate of Return if State Occurs Probability of State of Economy State of Economy Stock A Stock B Stock C .09 .18 .36 Boom Bust .60 .40 15 .07 -.05 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 15 percent each in A and B and 70 percent in C? (Do not round intermediate calculations and round your answer to 6 decimal places, e.g., .161616.) a. Expected return % b. Variance