Please answer both a and b. Thank you!

2. Elite Trailer Parks has an operating profit or $200,000. Interest expense for the year was $10,000; preferred dividends paid were $18,750; and common dividends paid were $30,000. The tax was $61,250. The firm has 20,000 shares of common stock outstanding. a. Calculate the earnings per share and the common dividends per share for Elite Trailer Parks. b. What was the increase in retained earnings for the year