A sales invoice included the following information: merchandise price, $8,000; terms 1/10,n/com; FOB shipping point with prepeld freight of $471 added to the invoice. Assuming that a credit for merchandise returned of $1,600 is granted prior to payment and that the invoice is paid within the discount period, what is the amount of cash that should be received by the seller? Os 56,307 Ob, goo Oc 100 Od