When an object is dilated , the resulting image is congruent to the pre image . true or false ?

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

Let w=23 . what is the value of w + 45 ?

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]