"There is no such thing as a free lunch." This is an example of which economic concept? Multiple Choice Basic necessities Maximization Income effect Trade-offs

Derek is working on a thesis on the changes in social behavior in the context of finding partners. an important part of his study concerns the various practices followed by males and females over the course of generations and how they have gradually transformed into our current social norms. derek can be called a(n) psychologist. (tb75)\

1. develop an action plan to deal with each of the following scenarios. a friend offers you a cigarette. (2 points) you go to a party and see they are serving alcohol. (2 points) a student offers to sell you some marijuana. (2 points) a friend comes to your house and asks you if he or she can take drugs out of your parents' medicine cabinet. (2 points)

How did the growth of railroads american businesses expand