For the Louisiana purchase question, it more than doubled the size of the united states. As for the second question I believe the answer would be "Thomas Jefferson was eager to explore the west to ensure the survival and prosperity of the United States"
Answer:
A post-industrial economy is a period of growth within an industrialized economy or nation in which the relative importance of manufacturing reduces and that of services, information, and research grows. And an industrial country is a newly industrialized economy or middle income country is a socioeconomic classification applied to several countries around the world by political scientists and economists.
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The Great Communicator was President Reagan.