Aroad sign drives information about traffic on busy highways. one sign shows "15 miles in 20 minutes ." what is this speed in miles per hour?

What could explain what happened when the time was equal to 120 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.

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?