The Stationery Company purchased merchandise on account from a supplier for $10,200, terms 1/10, 1/30. The Stationery Company returned merchandise with an involce amount of $1,200 and received full credit a. If The Stationery Company pays the invoice within the discount period, what is the amount of cash required for the payment? b. Under a perpetual inventory system, what account is credited by The Stationery Company to record the return