Question 16 3 pts In 2020, Costello Company performs work for Frank and bills Frank $10,000; Costello also receives $20,000 in cash related to other customers and pays expenses of $3,000. Frank pays Costello in 2021. If Costello uses the cash-basis of accounting, then Costello will report expenses of $3,000 in 2021. revenue of $10,000 in 2020. net income of $7,000 in 2020. revenue of $10,000 in 2021