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how do we know the olmecs were technologically advanced? a. they created the first version of a calendar. b. they invented tools using stones and metal. c. they used latex from trees to create rubber.
answered
Jan 12, 2017
History
high-school
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32.8k
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Is 44/75 and 8/9 in there simplest form
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Jan 9, 2016
Mathematics
middle-school
5
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137k
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