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This handbooks covers topics: community mobilization; water source protection, purification and borne diseases; sanitation; mosquito-borne diseases; deforestation and reforestation; farming; pesticides and toxics; solid waste and health care waste; h
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CK-12’s Algebra I Second Edition is a clear presentation of algebra for the high school student. Topics include: Equations and Functions, Real Numbers, Equations of Lines, Solving Systems of Equations and Quadratic Equations.
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Basic Algebra for Middle School and High School.