21. The following are a small selection of transactions that took place in 2020. a. Issued common stocks for $60,000 cash. b. Borrowed $40,000 by issuing bonds. c. Bought supplies for $850 cash. d. Purchased inventory for $3,500 on account. e. Received $500 from a customer who was on account as owing us money. f. Paid $5,000 cash dividends to the stockholders. g. Paid one of our vendors $400 cash for a balance on account. Illustrate how each of the above transactions affect the accounting equation. Use (+) and (-) signs to indicate the effect. Assets Liabilities + Stockholder's Equity