The Stationery Company purchased merchandise on account from a supplier for $16,000, terms 2/10, N/30. The 5 tationery Company returned merchandise with an invoice amount of $2,100 and received full credit. a. If The Stationery Company pays the Involce within the discount period, what is the amount of cash required for the payment? 5 b. Under a perpetual inventory system, what account is credited by The Stationery Company to record the return