This page presents exercises in multivariable calculus covering integral evaluation, area and volume determination, and center of mass calculations. Problems include confirmations of Fubini's theorem,...This page presents exercises in multivariable calculus covering integral evaluation, area and volume determination, and center of mass calculations. Problems include confirmations of Fubini's theorem, double and triple integrals, and practical applications like Earth modeling and ski resort work estimation. Key answers for selected tasks illustrate results associated with integrals and geometric figures.