You have a portfolio of two branches, Branch A and Branch 8. 75 Percent of yo total assets are invested in Branch A. The following information is given: A B 20% Branch Expected Return Covariance Mix 12% Branch A. A B 625 120 120 196 Note: 2 (RA)-625, 120= Cov(RA, RB)), 2 (RB) 96 A. Calculate the expected returm of the portfolio. B. Compute portfolio standard deviation of return