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The color _____ was used only by the imperial household.
asked
Jan 23, 2017
History
high-school
1
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0
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92.0k
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Hindu-Arabic numerals were developed around 400 B.C. and are used in a decimal (base 10) system. Which of these is true about Arabic numerals?
asked
Jan 18, 2017
Social Studies
high-school
2
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84.0k
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