1) Suppose you need to borrow $100,000.00. You will need to pay it back in 36 equal monthly payments. The rate you have to pay is 9% per year. How much money will he have to pay each month?

2) A student pays after 4 years $300,000.00 of school financing, if the initial loan was $180,000.00. At what interest rate did you get the loan? What real or effective interest rate did I pay if the nominal rate was compounded quarterly?