Peyton already has 15 dollars. Every hour (x) that she works at the corner store, she earns another 3 dollars (y). How many total dollars will Peyton have after 15 hours of work?

Find the solution of system of equation y= x-4 y=4x+2

What is the value of x in the following equation? -3x-2=2x+8

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.