The opening balance of one of the 31-day billing cycles for Suzy's credit card
was $7400, but after 15 days Suzy made a payment of $4900 to decrease her
balance, and it stayed the same for the remainder of the billing cycle. if her
credit card's APR is 22%, how much more in interest would she pay for the
billing cycle with the previous balance method than with the adjusted balance
method?