A start-up company often engages in the following transactions during its first year of operations. Classify those transactions in one of the three major categories of an organization's business activities. Business Activities Transactions 1. Purchasing machinery 2 Paying for advertising 3. Purchasing equipment. 4. Selling products to customers. 5. Purchasing a building 6. Supervising workers. 7. Research expenses towards its products. 8. Paying employee wagos Financing Investing Operating