Answer:
the main difference is in their commissions
Explanation:
An authorized dealer is a term to describe anyone who is independent of a  particular business (company), and yet sell the products or services of the business to their customers. In such case, the authorized dealer adds their own margin to cover their costs and profit.
However, an agent is an intermediary appointed by a business to negotiate with customers on behalf of the company (business). Hence, the company or business pays the agents commissions on the sales they make.
