how do u work this?

Post the following November transactions to T-accounts for Accounts Payable and Inventory, indicating the ending balance (assume no beginning balances in these accounts). A. Purchased merchandise inventory on account, $20,000. B. Paid vendors for part of inventory purchased earlier in month, $13,000. C. Purchased merchandise inventory for cash, $6,200. Accounts Payable Bal. Inventory Bal