15 (3.5 points) Firm A receives an average of 1,000 checks a day. The average check amount is $400. The collection float is 2 days and the daily applicable interest rate is 0.02%. Firm A is considering adopting a lockbox system. The bank charges a flat fee of $10 everyday for wire transfer. What is the highest processing fee per check Firm A firm would be willing to pay to completely eliminate its float? $0.35 $0.18 $0.12 $0.15 $0.23