What are the solutions to the following system of equations? select the correct answer below. y = x2 − 4x + 3 2x + y = 6

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45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

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.