The following information is provided for the book value of stockholder's equity of Walker Inc. as of December 31, 2021 (figures in millions). Common shares $216 Retained earnings $4,865 Accumulated other comprehensive loss -$26 Net common equity $5,055 Note: Authorized shares 1000 136 Outstanding shares a. Walker Inc. issues 20 million shares at $35 a share. What will be the company's net common equity after the issue? (2 marks) b. If Walker Inc. subsequently repurchases 1 million shares at $50 a share, show the effect of the further change in the stockholer's equity. Suppose that the average issue price of the shares is $25. (3 marks)