Nickolas Industries has daily cash receipts of $350,000. A recent analysis of the firm's collections indicated that customers' payments are in the mail an average of 2 days. once received, the payments are processed in 1.5 days. after the payments are deposited, the receipts clear the banking system, on average in 2.5 days. assume a 365-day year. a. how much collection float (in days) does the firm have? b. if the firm's opportunity cost is 11% would it be economically advisable for the firm to pay an annual fee of $84,000 for a lockbox system that reduces collection float by 2.5 days? explain why or why not. please show work (calculation) complete. thanks