Irene has a credit card that uses the previous balance method. The opening
balance of one of her 30-day billing cycles was $2510, but that was her
balance for only the first 5 days of the billing cycle, because she then paid off
her entire balance and didn't make any new purchases. If her credit card's
APR is 11%, which of these expressions could be used to calculate the
amount Irene was charged in interest for the billing cycle?
O A COST: 2052510)
O B. • 30|50)
O c. 5:30)6 • 2510 + 25 • $9)
OD 1.30 *$0 + 26 • 52510