How do you know that this personal narrative is told in the first person?
a. the narrator knows miss sullivan.
b. the narrator refers to herself as "i.
c. the narrator refers to her mother.
d. the narrator id talking about the past. water-by helen keller.

The answer is b. This is because in a First-Person Narrative, there are words such as "I" and "me". (In a third-person narrative, there are words such as he and she.) I hope this helps! :D ..  and I know the explanation was not that good, but still...

That would be (x+5) -3