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Answers by Rejo

Answers by Rejo
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According to Moh's hardness scale, your fingernail would be rated as 2.5. Juan and Carol are trying to identify an unknown mineral. Carol can scratch the mineral sample with her fingernail. Juan and Carol
answered Oct 12, 2017
6 votes
133k views
How do you add fractions
answered Aug 12, 2017
5 votes
110k views
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