Date: Name: 2. The unpaid balance at the start of a 28-day billing cycle was $1.472.35. Purchases of $126.54 and $52.89 were made on days 21 and 27, respectively, and a payment of $100 was credited to the account on day 20. Find the unpaid balance of the end of the billing cycle. The annual interest rate of the credit card is 25.74%