The firm of Beryl Agatha had sales of $20, 000 in 2020. The cost of goods sold was $13, 000, general and administrative expenses were $2, 000, interest expenses were $1, 000, and depreciation was $2, 000. Working capital increased by $400 and capital expenditures were $1,800. The firms tax rate is 35 percent. [15 marks] a) What are the firms earnings before interest and taxes? b) What is the firms net income? c) What is the firms cash flow from operating activities?