At the end of May 2011, one particular business headline referred to both private equity and pepperoni. California Pizza Kitchen, a restaurant chain, agreed to be acquired by private equity firm Golden Gate Capital for $470 million – yes, that’s a lot of dough. The students in Christina Feng’s business and entrepreneurship class at Martin Luther King Jr. High School of Arts and Technology in New York City were following this and other deals as they studied the big-money, fast-paced world of mergers and acquisitions – M&A for short. …