Determine whether each quadrilateral must be a parallelogram & justify your answer.

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]

Select the graph of the solution. click until the correct graph appears. |x| = 3

Which is f(5) for the function –2x2 + 2x - 3?