Respuesta :

ghaithgh

Answer:

The choice B. 1/9

Step-by-step explanation:

[tex] {b}^{ - 2} \\ \\ = {3}^{ - 2} \\ \\ = \frac{1}{ {3}^{2} } \\ \\ = \frac{1}{9} [/tex]

I hope I helped you^_^