hosting a major sporting event such as the Olympics can be a way to help a city's economy grow however the city must spend billions of dollar to host an event that lasts only a few weeks in a well developed essay explain whether the benefits of hosting the Olympic games outweigh their cost provide evidence to support your claim​

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?