20 POINTS and BRAINLIEST
Solve the simultaneous equation!

Is a currency whose value is tied to another currency, meaning that the exchange is fixed

How to determine whether two known pairs of points are on the same line.

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]