The following transactions occurred during July:

Received $900 cash for services provided to a customer during July.

Collected $2,200 cash for services previously completed in June.

Received $750 from a customer in partial payment of his account receivable which arose from sales in June.

Provided services to a customer on credit, $375.

Borrowed $6,000 from the bank by signing a promissory note.

Received $1,250 cash from a customer for services to be performed next year.

What was the amount of revenue for July?