$12$ Assume that you invest $$1,000$ in Stock A$,$ $$500$ in Stock B$,$ and $$500$ in a savings account. The savings account gives $2\%$ interest per year. The correlation between the annual returns of the two stocks is $50\%.$ The annual return of Stock A has expected value $6\%$ and variance $36\%.$ The annual return of Stock B has expected value $8\%$ and variance $16\%.$ What are the expected value and variance of the annual return of your total investment?