Charming Paper Company sells to the 12 accounts listed here. Capital Financial Corporation will lend 90 percent against account balances that have averaged 30 days or less, 80 percent for account balances between 31 and 40 days; and 70 percent for account balances between 41 and 45 days. Customers that take over 45 days to pay their bills are not considered acceptable accounts for a loan. a. Determine the maximum loan for which Charming Paper Company could qualify. b. Determine how much one month's interest expense would be on the loan balance determined in part a. (Do not round intermediate calculations. Round your final answer to 2 decimal places.)