On September 7, the billing date, Verna had a balance due of $565.85 on her credit card. Assume that the interest rate is 1.1% per month. Suppose that Verna's bank uses the average daily balance method. Answer parts (a) through (d). Sept. 11 Payment $280.00 Sept. 23 Charge: Airline ticket $332.00 Sept. 24 Charge: Hotel bill $190.01 Oct. 2 Charge: Clothing $84.91 a) Determine Verna's average daily balance for the billing period from September 7 to October 7. The average daily balance for the billing period was $