Please only attend to answering D.

10 years have passed, and Gerald's business is doing well. Further, he has made all the repayments on his loan so far as described above, and has just made the repayment due today. However, it has just been announced that the interest rate on Gerald's loan will go up to 5.5% p.a. compounding semi-annually. d) Calculate the new equivalent effective monthly rate on the loan. (1 mark)