at which value of x does the function have a jump discontinuity 50 Points dang I don't need answer file​

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]

Factor this polynomial completely x^2-64

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu