Carla has a credit card that uses the average daily balance method. For the first 15 days of a 31-day billing cycle, her balance was $2560, but then she paid off her entire balance and didn't make any new purchases. If her credit card's APR is 28%, how much was Carla charged in interest for the billing cycle?

Question

anonymous · Answer

try the math group lol
this is history

anonymous · Answer

My subject says "Economics - Financial markets."
Figured it would cover my question..

anonymous · Answer

$$(((15/31)*2560)*28%)*1/12$$