After operating for a couple of weeks, Jose Walsh's business completed the following transactions during the latter part of September. Sep. 22 Performed service for clients on account, $6,300. 30 Received cash on account from clients, $4,700. 30 Received an Internet bill, $200, which will be paid during November. 30 Paid cash for advertising expense of $1,200. 30 Paid cash for monthly salary to his assistant, $4,000. Journalize the business transactions. Include an explanation with each journal entry. Sep. 22: Performed service for clients on account, 56,300. (Record debits first, then credits. Select the explanation on the last line of the journ