Determining Amounts to be paid on Invoices Determine the amount to be paid in full settlement of each of the following invoices, assuming that credit for returns and allowances was received prior to payment and that all invoices were paid within the discount period: Customer Freight Paid by Returns and Merchandise Allowances $20,500 FOB destination, n/30 b. 31,100 FOB shipping point, 2/10, 1/30 5,900 24,000 FOB shipping point, 1/10, 1/30 1,300 11,000 FOB shipping point, 2/10, 1/30 1,800 42,200 FOB destination, 1/10, 1/30 Seller . 14,800 5560 C. d. 370 e. a. S b. CS d. e