Please help me I need to get a good grade on this

What is the answer to |-2x-5|-|-4+8| and x=7

What are correct trigonometric ratios that could be used to determine the length of ln

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.