Complex sentence: Mnuchin was born in 1933, and grew up in Scarsdale, New York, the son of parents who were "modest collectors" of art. He graduated from Yale University in 1955.
Split into simpler sentences: Mnuchin was born in 1933, and grew up in Scarsdale, New York. His parents were "modest collectors" of art. He graduated from Yale University in 1955.