John Grey & Company, a firm of real estate brokers, carried out the following trans¬

actions during the month of May. Which of these transactions represented revenue to the firm during the month of May? Explain, LO8 a John Grey invested an additional $4,000 cash in the business, b Collected $900 rent for May from a dentist to whom John Grey & Company rented part of its building.

c Arranged a sale of an apartment building owned by a client, James Robbins. The commission for making the sale was $9,000, but this amount would not be received until July 20 although the sale was completed in May.

d Collected cash of $1,500 from an account receivable. The receivable originated in April from services rendered to a client, e Borrowed $8,000 from the National Bank, to be repaid in three months.