Find the value of x

brainlest

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]

Determine domain and range, largest open interval, and intervals which function is continuous.

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?