Answer:
Following are the solution to this question:
Step-by-step explanation:
Just Parts (c) were discussed because they were mentioned in the issue.
A subpart of (c):
In point (i)
The answer is 1 for the CES since only CES has salary and wage rates information.
In point (ii)
The answer is 2 for the CPS because only the CPS has job status information.
In point (iii)
The answer is 3 for the CPS as detailed in this issue, neither CES nor CPS explicitly states gender information. Even so, population studies generally include a 'gender' requirement.
To find the solutions to the system, we need to find exactly when one expression is equal to the other. We can do this by setting both of the right sides equal to each other, so that

Subtracting x+6 from either side, we find

factoring out an x+6:


The x-coordinates of our solutions will therefore be 6 and -6. Since the question only asks for the <em>x-coordinate</em> of the midpoint, we simply need to find the number exactly halfway between 6 and -6, which is 0.
Yes the greatest common factor of odd numbers will always be odd