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Answers by Robmerica

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Janelle made a hypothesis about the uneven temperatures inside her house during winter. She believes that 50% of the heating ducts are blocked, and she plans to investigate. If she wants to prove her hypothesis
answered Sep 15, 2017
7 votes
143k views
What is valuable goods
answered Aug 16, 2017
6 votes
233k views
Gas-powered vehicles, chemical refineries, industrial plants, vegetation, and forest fires all emit what into the atmosphere?
answered Mar 20, 2017
5 votes
67.5k views
What need led to John Deere's 1837 invention?
answered Jan 26, 2017
3 votes
122k views
there are 27 red or blue marbles in the bag the number of red marbles is five less than three times the number of the blue marbleshow many red marbles are in the bag and how many blue marbles are in the
answered Mar 21, 2016
5 votes
198k views
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