Could u clarify the question more Please
Answer: B. 
Step-by-step explanation:
1. By definition, the associative property of addition is:

2. Therefore, if you have the following expression:

You apply the Asociative property of addition by regrouping the numbers as following:

3. Then, you can conclude that the correct option is B.
Domain: all x values between the ends of a line on the x- axis
Range: all y values between the ends of a line on the y-axis
The answer to this is 1 pound and 4 ounces.