Blank as 9 hundred is 9 thousand

What properties allow transformation to be used as a problem solving tool

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.

Robin and john each a a 12 inch pizza about how many square inches of pizza did they eat? estimate how much pizza they ate