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General Chemistry

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Physics with Calculus

Patrick

Struggling with evolution, ecosystems, or the human body? Master key biology concepts with clear explanations that make learning easier.

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From probability to hypothesis testing, statistics concepts are explained step-by-step to build problem-solving skills and exam readiness.

Introductory Statistics

Struggling with data analysis, probability, or regression? Statistics is connected to real-world business decisions to make concepts easier to apply.

Statistics for Business

From proteins and enzymes to metabolism and pathways, biochemistry concepts are connected across chemistry and biology for deeper understanding.

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Need help with GDP, inflation, or monetary policy? Macroeconomics is simplified to highlight the big picture and boost exam performance.

Macroeconomics

Learn topics such as nutrition, physical activity, mental health, stress management and healthy lifestyle choices.

Personal Health

From macronutrients and vitamins to metabolism and diet planning, nutrition concepts are explained clearly and connected to real-life examples.

Nutrition

Learn how medical terms are built and what they mean by breaking them into simple parts. This course helps you understand and use the language of healthcare with confidence.

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Introductory Biology

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Human Biology

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Algebra & Trigonometry

From logic and problem solving to voting systems, personal finance, and statistics, liberal arts math topics are explained step-by-step to build confidence with real-world mathematical thinking and strong preparation for quizzes and exams.

Liberal Arts Math

From logic and problem solving to ratios, finance, and statistics, quantitative reasoning concepts are explained step-by-step to build confidence applying mathematics to everyday situations, workplace contexts, and practical decision-making.

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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.

Prealgebra & Beginning Algebra

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Which of the following answer choices correctly shows the hydration shell forming around sodium and chloride ions when soduim chloride (NaCl) is dissolved in water?