Do you dislike waiting in line? supermarket chain kroger has used computer simulation and information technology to reduce the average waiting time for customers at stores. using a new system called quevision, which allows kroger to better predict when shoppers will be checking out, the company was able to decrease average customer waiting time to just seconds (informationweek website and the wall street journal website, january , ).

the correct answer is "nuclear power plants do not pollute the air". unlike fossil fuel-fired power plants, nuclear power plants do not produce chemicals or other components that could pollute the air. nuclear reactors work with uranium, creating energy by splitting the atoms in a fission chain reaction, which not results in the formation of carbon dioxide or other greenhouse gases.

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rational decision making is a multi-step process for making choices between alternatives. the process of rational decision making favors logic, objectivity, and analysis over subjectivity and insight. the word “rational” in this context does not mean sane or clear-headed as it does in the colloquial sense.

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answer; is the sum of all individual demands curves;