Respuesta :

itzking

Answer:

7

Step-by-step explanation:

9-2

Answer:

[tex]\frac{1}{81}[/tex]

Step-by-step explanation:

Assuming you mean: [tex]9^{-2}[/tex]

[tex]9^{-2}\\\\a^{-b}=\frac{1}{a^b}\\\\ 9^{-2}=\frac{1}{9^2}=\boxed{\frac{1}{81}}[/tex]

Hope this helps.