What is the missing reason in step 3?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

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.

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?