I need help with this question please

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]

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Which table shows a proportional relationship between miles traveled and gas used?