Need help completing 1-4 on this problem. It needs to be filled into the charts provided. Thanks Not sure what to put under the post ref. Im assuming it's numbers from the general ledger but not sure.

PR 5-5B All journals and general ledger; trial balance OBJ 2 The completed by AM Express Company during March 2016, the first month the fiscal year, were as follows: Mar. 1. Issued Check No. 205 for March rent, S2,450. 2. Purchased a vehicle on account from McIntyre Sales Co., S26,900. 3. Purchased office equipment on account from office Mate Inc., $1,57o. 5. Issued Invoice No. 91 to Ellis Co., $7,000. 6. Received check for s7,950 from Chavez Co. in payment of invoice. 7. Issued Invoice No. 92 to Trent Co., $9,840. 9, issued Check No. 206 for fuel expense, $820. 10. Received check for $10,000 from Sajeev Co. in payment of invoice. 10. Issued Check No. 207 to office City in payment of $450 invoice