Harvey has a credit card that uses the previous balance method. The opening

balance of one of his 30-day billing cycles was $2790, but that was his

balance for only the first 6 days of the billing cycle, because he then paid off

his entire balance and didn't make any new purchases. If his credit card's APR

is 21%, which of these expressions could be used to calculate the amount

Harvey was charged in interest for the billing cycle?

O A G3 • 30 (52790)

OB 22:30)(6• 50 + 24 • *2790

oc. 07.30)6* $2799 + 24 =$99

OD. (330)