Answer:
5, -25, 125, -625,...
Explanation:
In order to test if something is geometric, just divide each element by the previous element. It is geometric if the number is always the same.
-25/5=-5
125/-25=-5
-625/125=-5
The other options do not fall into this pattern.
5, -25, etc
It involves multiplying to get each answer, so it is geometric
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