Ned helppp...thanksss

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

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Which point has an coordinates of (2,0) ? a