Answer:
a/6
Explanation:
Hannah has a total of "a" stickers.
Then, she divides the stickers into 6 envelopes, we can think of the envelopes as "groups".
This is what is called a quotient, and it is written as:
a/6
This is the number of groups of 6 elements of a, and in this case, represents the number of stickers that we will have in each one of the 6 envelopes.