The following transactions for the month of March have been journalized and posted to the proper accounts. 

Mar. 1 The business received $7,000 cash and issued common stock to stockholders. 

Mar. 2 Paid the first month's rent of $500. Mar. 

3 Purchased equipment by paying $2,000 cash and executing a note payable for $6,000. Mar. 

4 Purchased office supplies for $700 cash. 

Mar. 5 Billed a client for $12,000 of design services completed. 

Mar. 6 Received$9,000 on account for the services previously recorded. What is the balance in Cash on March 6?