Question

Who have contributed a lot in the prosperity of U.S.A?
Answer in brief

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Answer 1

Explanation:

Nelson Mandela and Franklin Roosevelt maybe

plese my answer as brainleast

Answer 2

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A strong emphasis on education, including technical and vocational training, also contributed to America's economic success, as did a willingness to experiment and to change. Labor mobility has likewise been important to the capacity of the American economy to adapt to changing conditions.

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