2.1.5 Since June 30, 2014 Smith has been making deposits of 100 each into a bank account on the last day of each month. For all of 2014 and 2015 Smith's account earned nominal interest compounded monthly at an annual rate of 9%. For the first 9 months of 2016 the account earned (12) - 105, and since then the account has been earning (12) -.12. Find the balance in the account on each of the following days: (i) January 1, 2015, (ii) January 1, 2016, and (iii) February 1, 2017 Find the amount of interest credited on February 28, 2017