Sep1 Business sold $2400 inventory to ECA Inc., the cost is $600. Terms 2/5, n/15 FOB Sep1 Business purchased $3600 of inventory from WTA Inc.. Terms 1/10, n/20 FOB Sep7 Business paid delviery for the inventory sales to ECA Inc. Sep3 Business purchased $3000 of inventory from Freedom Inc. paid in cash Sep4, Business returned defective $300 inventory back to WTA Sep6 Business Received ECA Inc's money. Sep9 business purchased inventory $2700 from Sarah's Ltd, Terms: 1/5, n/10, FOB Sep11 Business paid the WTA Inc. in full. Sep30 paid Sarah's Ltd for the Sep9 purchase