Gifts Galore Inc. borrowed $1.95 million from National City Bank. The loan was made at a simple annual interest rate of 15% a year for 3 months. A 20% compensating balance requirement raised the effective interest rate. Do not round intermediate calculations. Round your answers to two decimal places. a. The nominal annual rate on the loan was 11.5%. What is the true effective rate? % b. What would be the effective cost of the loan if the note required discount interest? % c. What would be the nominal annual interest rate on the loan if the bank did not require a compensating balance but required repayment in three equal monthly installments? %