Respuesta :
The expression 9⁻² is equivalent to the expression 1/81. Then the correct option is C.
What is an equivalent?
The equivalent expression is the expression that is in different forms but is equal to the same value.
The expression is given as 9⁻².
The expression can be written in the form of a fraction. Then we have
[tex]\dfrac{1}{9^2}[/tex]
We know that square of 9 is 81. Then we have
[tex]\dfrac{1}{81}[/tex]
More about the equivalent link is given below.
https://brainly.com/question/889935
