45pts! what is the range of the function shown on the graph?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?