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What is the sum of 2 1/2, 3 1/4, and 7?
answered
Feb 12, 2018
Mathematics
high-school
3
votes
228k
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Which of these is a source for particulate matter in the air? a. automobiles b. dust c. fires d. all of the above
answered
Jul 4, 2017
Physics
high-school
5
votes
69.1k
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