Expand and simplify (3x+4)-3 (x-2)

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Just tell me how to set up the equation.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi