Which pair of expressions below are equivalent? 3(8n) and 11n
n + n + n + n + n and n5
3n - 8p and 8p - 3n
3(8n - 8) and 24n - 24

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    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

How many terms does the polynomial x^2 y^2 have

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?