Which of the following is an adjustment allowed by the irs

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]

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

What is the result of the following division?