ANSWER:

The pattern is in the following example:

 

The answer is: 1

 5 x ? = 5 => ? = 1

OR

The answer is: 25

 5 x 5 = ? => ? = 25

ALSO:

Again the answer is: 1

 5 / 5 = ? => ? = 1

OR

The answer is: 25

 25 / 5 = ? => ? = 5