A firm has signed a French mortgage, with monthly installment and duration 5 years. The debt is 100,000 , the nominal rate j = 3%. 1. Find the installment. 2. Find the outstanding debt after three months. 3. After three months, the firm asks for an additional loan of 50,000 . The new debt is added to the previous one in a new mortgage with the same term, but with j = 2.8%. Find the first installment of the new mortgage