201. What is the last date of the discount period for an invoice date of October 06? The payment terms with ordinary dating are 3/10, n/45.

202. A handbag is listed for $850, less trade discounts of 30% and 15%. What further rate of discount must be offered to reduce the net price to $450?

203. For an invoice dated March 19, 2020, with the payment term under ordinary dating as 2/10, n/30, what is the last date of the credit period?