5. Stockholder equity in 2019 was $570. The retained earnings and dividends for 2020 are $50 and $10. The 2020 stockholder equity is $575. a. How much is the change in stockholder? b. Did the company buy back or issue stock or do nothing? c. How much is the cash flow to stockholders? 6. Stockholder equity in 2019 was $750. The retained earnings and dividends for 2020 are $150 and $25. The 2020 stockholder equity is $880. a. How much is the change in stockholder? a. Did the company buy back or issue stock or do nothing? b. How much is the cash flow to stockholders? 7. Stockholder equity in 2019 was $900. The retained earnings and dividends for 2020 are $80 and $15. The 2020 stockholder equity is $980. a. How much is the change in stockholder? b. Did the company buy back or issue stock or do nothing? c. How much is the cash flow to stockholders