since nalah is 10 years old and she got the doll when she was 6 we can do 10 - 6 = 4 so 4 years she has had the doll.
What is the algebraic expression?
Answer:

Step-by-step explanation:
Let
first consecutive number
(
is the first number,
would be the second consecutive number of the sequence, and
would be the third)







the consecutive numbers that sum up to
are
and 
Hope this helps :)