When markets or governments make economic decisions about how to most efficiently convert their resources into goods and services, what basic economic question are they answering?

Who is the speaker in this excerpt from book 13 of homer’s odyssey, and what inference can you make from the tone?

How much time on average do americans currently spend watching tv and videos per day?

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?