Please provide necessary journal entries for the following transactions for Nathan. a) Nathan sold $2,500 worth of goods to Audrey on credit, terms 2N15, b) Audrey returned $460 worth of goods within the first week of sale, c) Audrey made net amount before the due date. d) Suzanne sold $1,800 worth of goods to Christine on credit. e) Christine paid only 75% of the amount, f) Knowing that Christine went into receivership, Suzanne wrote off the balance receivable.