needing a breakdown of how to do 3 and 4 by hand

3) A portfolio is comprised of 100 shares of Stock A valued at $22 a share, 600 shares of Stock B valued at $17 each, 400 shares of Stock C valued at $46 each, and 200 shares of Stock D valued at $38 cach. What is the portfolio weight of Stock C? 3) A) 45.27 % B) 42.33% 047.92% D) 46.87% E) 48.09% 4) Stock A has an expected return of 12 percent and a variance of.0203. The market has an expected return of 11 percent and a variance of.0093. What is the beta of Stock A if the covariance of Stock A with the market is.0137. 4) AM.47