Respuesta :

wegnerkolmp2741o

Answer:

1/ 9^5

Step-by-step explanation:

When dividing exponents with the same base, subtract the exponents

9^2 / 9^7

9 ^ (2-7)

9^ -5

We know that a^ -b = 1/ a^b

1/ 9^5

tonytlan06

You can rewrite it as:  (using the law of dividing exponents)

9^(2-7) = 9^(-5) = 1/(9^5)

The fourth one