Answer:
The first table. (By that, I am referring to the table directly under the question)
Step-by-step explanation:
A function has only one y value for every x value. Thus, for example the coordinates (-5, -5) and (-5, 5) could not be a function.
It is 28 pounds. This is because all of the others have a ratio of 4:1 while 28 and 5.5 have a ratio of 56:13.
