Determining Amounts to be paid on Invoices Determine the amount to be paid in full settlement of each of the following involces, assuming that credit for returns and allowances was received prior to payment and that all invoices were paid within the discount period: Customer Freight Pald by Returns and Merchandise Seller Allowances $20,500 FOB destination, 1/30 $4,800 31,100 $560 FOB shipping point, 2/10, 1/30 5,900 24,000 FOB shipping point, 1/10, 1/30 11,000 FOB shipping point, 2/10, 1/30 1,800 42,200 FOB destination, 1/10, 1/30