Merchandise is sold on account to a customer for $12,100, terms FOB shipping point, 1/10, n/30. The seller paid the freight of $500. a. Determine the amount of the sale. $fill in the blank 1 b. Determine the amount debited to Accounts Receivable. $fill in the blank 2 c. Determine the amount of the discount for early payment. $fill in the blank 3 d. Determine the amount due within the discount period