All the seventh grade of students decided to have a pizza party for field day there are 85 students in seventh grade if each Pizza has 9 places and each student will eat three slices how many pieces will the team need to buy to feed everyone

How to do this , and can some one explain

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

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.