Assume no purchases or returns are made in the exercise given below. At the beginning of a​ 31-day billing​ period, Sandra Lazzaro has an unpaid balance of ​$730 on her credit card. Three days before...

Assume no purchases or returns are made in the exercise given below.

At the beginning of a​ 31-day billing​ period, Sandra Lazzaro has an unpaid balance of

on her credit card. Three days before the end of the billing​ period, she pays

Find her finance charge at

per month using the average daily balance method.

The finance charge for Sandra Lazzaro is