Answer:
The expression that gives the number of bagels is 6b.
Explanation:
The given table is ;
6 36
7 42
8 48
b ----
Let 'b' represents the bagels in any number of half dozen.
Let the total number of bagels be represented by x.
Now, we can represent the situation as follows:

The expression that gives the number of bagels is 6b.
We can check this also.
When b = 7, we get x = 42
when b = 8, we get x = 48