Question in picture! will give brainliest!! please help asap!

Volume of cylinder with a radius of 8cm and height of 25 cm

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]

Find the solution(s) to x^2-14+49=0