Complex sentence: Deborah Adair didn't start out as an actress, as she had earned a degree in advertising and marketing at University of Washington, working afterward as a copywriter, commercial producer and assistant promotion manager for radio stations in Seattle, Washington.
Split into simpler sentences: Deborah Adair didn't start out as an actress, as she had earned a degree in advertising and marketing at University of Washington. She worked as a copywriter, commercial producer and assistant promotion manager for radio stations in Seattle, Washington.