PT Mustika is considering manufacturing protective cases for a popular new smartphone. Management decides to borrow Rp 400.000.000 from each of two banks, Sejahtera Bank and Sentosa Bank. On the day that you visit both banks, the quoted prime interest rate is 6.5 %. Each loan is similar in that each involves a 300-day note, with interest to be paid at the end of maturity days. Assume a 365-day year. Sejahtera Bank. The interest rate was set at 1.5 % above the prime rate on Sejahtera Bank's fixed-rate note. Over the loan period, the rate of interest on this note will remain at the 1.5 % premium over the prime rate regardless of fluctuations in the prime rate. Sentosa Bank. The bank sets its interest rate at 1 % above the prime rate on its floating-rate note. The rate charged over the loan period will vary directly with the prime rate. For the Sejahtera Bank loan: a. Calculate the total dollar interest cost on the loan. b. Calculate the interest rate on the loan. c. Assume that the loan is rolled over each loan period throughout the year under identical conditions and terms. Calculate the effective annual rate of interest on the fixed-rate, Sejahtera Bank