How did easter start? what is the meaning?

What name is given to the money that had to be paid by germany in ww2

In which type of economy are these decisions made by the producers , consumers, and the goverment?

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?