C. On the 28 October 2020, a retailer received an invoice worth RM12,000 (including transportation cost of RM300). She was given trade discount 10% and 8% and the cash discount terms of 5/10, 3/20, net/30. Explain the cash discount terms of 5/10, 3/20, net/30. i. 11. (3 marks) Calculate the single discount equivalent to the trade discounts given. iii. Find the last date to get 5% cash discount. iv. Find the total payment if the retailer paid on 16 November 2020. (3 marks) (1 mark) (4 marks)