What 4.1555 rounded to the nearest tenth

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]

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

What is the measure of angle x? 37° 82° x°