Help please. I need this in a few minutes

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.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Tom drove 206 miles in 3.9 hours. estimate his average speed.