The term ALMA MATER OF TESLA'S ELON MUSK is the Wharton School of the University of Pennsylvania, which is a 7-letter answer. The Wharton School is a business school located in Philadelphia, Pennsylvania and is one of the oldest business schools in the world. It was founded in 1881 and is part of the Ivy League. Elon Musk, the founder of Tesla, attended the Wharton School from 1988 to 1992 and graduated with a Bachelor of Science degree in economics.