The cash T-account has a beginning balance of 21. During a year, 100 was debited, and 110 was credited to the account. What is the ending balance of Cash?

During a year Company has 60 in revenues, 40 in expenses, 10 in issuance of new stocks, 3 in dividends payment and 15 in payments on accounts payable. Stockholders’ equity changed by:

A firm made sales of 690 and has costs of goods sold of 390. Inventory increased by 15 and accounts payable increased by 9. Operating expenses were 120, marketing expenses were 70, How much was firm’s net income for the year?