What is the ancient celtic holiday that halloween is based on?

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?

What does the person talking to priscus mean when he says the climax of misery is to have to pay for justice