What is 125 rounded to the nearest mile

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 is the size of the matrix resulting from

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?