Final answer:
The advertising manager and sales supervisor at Greenwalt Advertising report to the Marketing Manager, who oversees advertising and sales strategies.
Step-by-step explanation:
The advertising manager and sales supervisor at Greenwalt Advertising perform job functions that a higher-level manager typically oversees. The person to whom they report is likely the Marketing Manager. The Marketing Manager is responsible for directing the company's advertising and sales strategies, ensuring that the advertising aligns with sales goals, and that the sales team implements these strategies effectively. This managerial role involves coordinating various functions related to promoting and selling products or services.