Trying to pass geometry

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

Will give a: 122 b: 90 c: 48 d: 180