What is the answer to number 17? ? !

Abcd is a parallelogram. the diagram is not drawn to scale. if m

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]

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem