1 (30p) A factory that produces spare parts used a 7500000 TL credit from the bank for 10 years to buy a new machine. The interest rates to be applied by the bank are as follows: 1st 3 year: 20%, 2nd 3 year:22% last 4 year: 26% In addition, the purchased machine has 100.000 TL repair and 50000 TL maintenance expense every year. At the end of 10 years a) What is the total amount to be paid to the bank? b) What are the repair and maintenance costs? c) How much is the total expense