David assembles 12 circuit boards in 255 minutes. amy assembles 9 circuit boards in 170 minutes. who works at a faster rate?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

What is the difference between the equations of a vertical and a horizontal line?

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function