this is the chart

what I have previously is the answers and that is used to do part c but i need help

July Purchased merchandise from Eby Company $8,420. 2 Received freight bill from Shaw Shipping on Eby purchase $430. 3 Made sales to Fort Company $1.650 and to Hefner Bros. $1,$30. 5 Purchased merchandise from Getz Company $3,230. 8 Received credit on merchandise returned to Getz Company $330. 13 Purchased store supplies from Dayne Supply $740. 15 Purchased merchandise from Eby Company $3,580 and from Bosco Company $4,230. 16 Made sales to Aybar Company $3,250 and to Hefner Bros, $1,920. 18 Received bill for advertising from Welton Advertisements $650. 21 Sales were made to Fort Company $420 and to Duncan Company $3,010. 22 Granted allowance to Fort Company for merchandise damaged in shipment $50. 24 Purchased merchandise from Getz Company $2,900. 26 Purchased equipment from Dayne Supply $800. 28. Received freight bill from Shaw Shipping on Getz purchase of July 24,5410 . 30 Sales weremade to Aybar Company $5,790