Answer:
The answer is

Explanation:
Change the sign of the exponent by rewriting the base as its reciprocal.
(-
) to the 2nd power
Use the power rule (ab)n to distribute the exponent.

Raise −1 to the power of

Multiply
by 1.
Raise 7 to the power of 2.

The result can be shown in multiple forms. Which there down below
Exact Form:

Decimal Form:12.25
Mixed Number Form:12
