Need asap
explain why the equation 5x-7=7 has only one solution?

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

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!