1) An invoice of RM 21,700 including service charges RM 200 dated 26 June 2020 was offered 20 % and 10 % trade discounts and cash discount terms of 5/30, n/60. a) Calculate the net payment if it was settled on 18 July 2020. {3 marks} b) Find the outstanding balance if RM 12,000 was paid on 20 July 2020. {4 marks)