How do I Turn 36.6 in to a fraction

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]

Solutions for 2x+7 less than or equal to 3x-5

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion