Answer:
[tex]7^{-4}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex](a^m)^{n}[/tex] = [tex]a^{mn}[/tex] , then
[tex](7^2)^{-2}[/tex]
= [tex]7^{2(-2))}[/tex]
= [tex]7^{-4}[/tex]
