Given that f(x) = 2x 5 and g(x) = x − 7, solve for f(g(x)) when x = −3.

7x+8y=-18, 4x-9y=-3 solve the system of equations

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.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)