The following transactions occurred during july: received $1,050 cash for services provided to a customer during july. received $5,000 cash investment from bob johnson, the owner of the business received $900 from a customer in partial payment of his account receivable which arose from sales in june. provided services to a customer on credit, $525. borrowed $7,500 from the bank by signing a promissory note. received $1,400 cash from a customer for services to be rendered next year. what was the amount of revenue for july?