Q2) A customer borrowed $ 10,000 for a year at an advertised interest rate of 8% Required: 1- Calculating the real interest rate and the total amount paid by the customer to the bank in case the loan is paid in one payment at the end of the period? 2-Calculating the real interest rate and the total amount that the customer pays to the bank in case the bank requires keeping a balance my compensation 20%? 3- Calculating the real interest rate if the loan and interest are paid in monthly installments