PLZ help need to turn it in, in 30 mins !!

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.

Which of the following represents the factorization of the trinomial below? x^2+7x-30

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.