11 People are entering a museum at a rate modeled by f t people per hour and exiting the buildin at a rate modeled by g t people

Question

11 People are entering a museum at a rate modeled by f t people per hour and exiting the buildin at a rate modeled by g t people per hour where t is measured in hours The functions f and g are honnegative and differentiable for all times t Which of the following inequalities indicated that the ate of change of the number of people in the building is decreasing at time t a g t 0 b g t 0 c f t g t 0 d f t g t 0

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