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OpenStudy (anonymous):
The early river valley civilizations that emerged after the Neolithic Revolution influenced modern-day practices by instituting the ______. A. exchange of excess goods and services B. concept of equality for all people in a society C. use of algebra to perform advanced calculations D. use of steel to strengthen buildings
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OpenStudy (anonymous):
@awright2014
OpenStudy (anonymous):
@cliffordtapp
OpenStudy (cliffordtapp):
i think it is a
OpenStudy (anonymous):
Thanks
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