For each instance below determine the amount to be paid for each invoice. Assume the returns occurred and were settled before the invoice is paid and if a discount is available that the invoice is paid within the discount period. Transportation paid by the seller will be included into the amount paid. a b d e f = exc h =g+b a-d =e-f Trans- portation paid by Seller Amount Subject To Discount Merch- andise A $10,000 Ret. & Allow Discount Net of Discount Amount Paid B 10,000 2,000 Terms FOB-D, 2/10, n/30 FOB-SP, 1/10, n/30 FOB-D, n/30 FOB-SP, 2/10, n/30 FOB-SP, 1/10, n/30 c. 12,000 $2,500 ... D. 2,500 100 900 E. 7,500 $400 500