Financial Accounting Net Income

"a. Assuming a constant profit margin, what will Cranberry Corporation's net income be if sales increase by 10%? b. What is Cranberry Corporation's addition to retained earnings with a 10% increase in sales? Assume the dividend payout ratio and profit margin remains fixed. c. Assume Cranberry Corporation is operating at full capacity. What will total assets be if sales increase by 10%? Assume costs, current liabilities, and current assets vary directly with sales and that the dividend payout ratio remains unchanged. "