What is marketing and it type and listen them

List three major educational changes over the past 100 years that have positively influenced students. explain why these changes were influential.

When the national economy goes from bad to better, market research shows changes in the sales at various types of restaurants. projected 2011 sales at quick-service restaurants are $164.8 billion, which was 3% better than in 2010. projected 2011 sales at full-service restaurants are $184.2 billion, which was 1.2% better than in 2010. how will the dollar growth in quick-service restaurants sales compared to the dollar growth for full-service places?

Need today! will get brainliest for right answer! compare and contrast absolute advantage and comparative advantage.