Marco Nelson opened a frame shop and completed these transactions: 1. Marco started the shop by investing $41,900 cash and equipment valued at $19,900 in exchange for common stock. 2. Purchased $260 of office supplies on credit. 3. Paid $3,100 cash for the receptionist's salary. 4. Sold a custom frame service and collected $6,400 cash on the sale. 5. Completed framing services and billed the client $390. What was the balance of the cash account after these transactions were posted?