help please!! thank you

Answer:
= [tex]\frac{25}{6}[/tex]
Step-by-step explanation:
[tex]\frac{2}{6\sqrt{8} } \sqrt{2} = \frac{1}{6}[/tex]
[tex]-(-\frac{18}{\sqrt{-81} } -2) = 4[/tex]
= [tex]\frac{1}{6} + 4[/tex]
= [tex]= \frac{1}{6} + \frac{24}{6}[/tex]
= [tex]\frac{25}{6}[/tex]