Lana has a credit card that uses the adjusted balance method For the first 10 days of one of her 30-day billing cycles, her balance was 2800 . She then made a payment of 1200 so her balance decreased to 1600, and it remained that amount for the next 10 days Lana then made a purchase for 500 so her balance for the last 10 days of the billing cycle was 2100 If her credit card's APR is 35% how much was Lana charged in interest for the billing cycle? A. 14.38 B. 60.41 C. 80.55 D. 46.03

To calculate the interest charged to Lana for the billing cycle, we need to follow these steps:1. Calculate the average daily balance for the billing cycle.2. Calculate the monthly interest rate based on the APR.3. Calculate the interest charged for the billing cycle.Step 1: Calculate the average daily balance for the billing cycle.The billing cycle is 30 days long. For the first 10 days, the balance was 1600. For the last 10 days, the balance was 2800 * 10 + 2100 * 10) / 30Average daily balance = ( 16000 + 65000 / 30Average daily balance = 2166.67 * 2.9167%Interest charged = 60.41.