$1.$ You invest equal amounts in Company A and Company B$.$ Company A has an expected return of $10\%$ and Company B has an expected return of $15\%.$ Company As standard deviation is $8\%$ and Companys Bs standard deviation is $12\%.$ The covariance between the two securities is $0\mathrm{.}0045.$ What is the expected return and standard deviation for this portfolio?