Al's Plumbing has the following current account values. These accounts represent a net of cash for the period in the amount of Account Beginning Ending Balance Balance Accounts receivable $32,800 $31,300 Accounts payable 29,700 26,500 Inventory 52,600 54,200 use; $3,300 use; $3,200 source: $3,300 source; $3,100 use; $3,100