A problem states: "There are 3 more baseballs than bats in a dugout. There are 15 bats and baseballs in the dugout in all. How many bats are there in the dugout?" Let b represent the number of bats. Which equation represents the situation? 2(b+3)=15 b + 3 = 15 2b−3=15 2b + 3 = 15

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.