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Introductory Statistics

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Macroeconomics

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Introduction to Biology

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Algebra & Trigonometry

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Liberal Arts Math

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From whole numbers and integers to equations and graphing, develop a strong understanding of foundational math concepts with clear, step-by-step support every step of the way.

Prealgebra

Master the fundamentals of algebra as you solve equations, analyze patterns, and work with mathematical relationships through guided, step-by-step instruction.

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At 298 K and 723 torr, a sample of nitrogen has a volume of 38.55 mL. If the pressure is increased to 925 torr at a constant temperature, what volume would nitrogen occupy?