I need to post to General Ledger the following:

21 Billed customers for cleaning offices $670

29 Received $300 from the cusomters billed on the 21

How do I post these?

goldenbutterfly

21 Billed customers for cleaning offices $670

dr. Accounts Receivable 670
cr. Service Income 670
to record accounts receivable on service rendered

29 Received $300 from the cusomters billed on the 21
dr. cash 300
cr. Accounts Receivable 300
to record partial payments received