Numbers like 10,100,1000 and so on are called

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 expression is equivalent to (2x-1)(x-3)?

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?