The Money and Finance Group's manager, Jerome Stark, suspects that adverting spending prodicts the amount of Revenue that is brought in by the company. Based on historical observations, acone has gathered the following data, which show the amount of money spent on Advertising and the resulting Revenue amounts Advertising Expenditure Revenue $1.50M $25.50M $3.50M $59.50M 52.70M $28.90M $1.60M $27.20M $1.20M $20.40M $1.70M $24.90M $3.90M $66.30M What is the independent variable? Demand Amount spent on office supplies Advertising Expenditure Rovena