Which of the following are true about the function graphed above?

I'm so close to finishing all these.

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !