You have collected the information about Gulf Corp.: a) What is the sustainable growth rate for Gulf Corp.? b) If it does grow at this rate, how much new borrowing will take place in the coming year, assuming a constant debt-equity ratio? c) What growth rate could be supported with no outside financing at all? Courtland Corp. wishes to maintain a growth rate of 13 percent a year, a debt-equity ratio of 0.30, and a dividend payout ratio of 50 percent. The ratio of total assets to sales is constant at 1.56. What profit margin must the firm achieve