(Cost of trade credi) Calculate the effective cost of the following trade credit terms when payment is made on the net due date. Use approximate cost-of-credit formula Note Assume a 30-day month and 360-day year a. 3/5 net 60 b. 2/15, net 45 C. 3/10.net 75 d. 2/15, net 45 a. When payment is made on the net due date, the APR of the credit terms of 315, net 60 ls /% (Round to two decimal places.)