Selected activity of Mason Consulting Services follow. DATE TRANSACTIONS 2019 Sept. 1 Zack Mason invested $54,000 in cash to start the firm. 4 Purchased office equipment for $5,900 on credit from Den, Inc.; received Invoice 9823, payable in 30 days. 16 Purchased an automobile that will be used to visit clients; issued Check 1001 for $13,900 in full payment. 20 Purchased supplies for $460; paid immediately with Check 1002. 23 Returned damaged supplies for a cash refund of $140. 30 Issued Check 1003 for $3,400 to Den, Inc., as payment on account for Invoice 9823. 30 Withdrew $2,400 in cash for personal expenses. 30 Issued Check 1004 for $1,400 to pay the rent for September. 30 Performed services for $2,450 in cash. 30 Paid $405 for monthly telephone bill, Check 1005. Post the above transactions into the appropriate Ledger accounts.