Xanadu Company purchased merchandise on account from Springhill Company for $6,400, terms 1/10, n/30. Xanadu returned merchandise with an invoice amount of $1,300 and received full credit. a. If Xanadu Company pays the invoice within the discount period, what is the amount of cash required for the payment? If required, round the answer to the nearest dollar. $fill in the blank 1 b. What account is debited by Xanadu Company to record the return