In Exercises 123, simplify the given expression or perform the indicated operation(s) and, if possible, simplify. Assume that all variables represent positive real numbers. 5 x10 y20

Chapter 14: Preparing Materials for Mass Media Tuesday, March 8, 2016 PR and News • PR accounts for 50% of news • 70% of adults follow local news • Uncontrolled, Editor • Reporters process info • Reporters rely...