Answer:
3a+5
Step-by-step explanation:
add-4a and 7a
3a+14-9
subtract 9 from 14
3a+5
Answer:

Step-by-step explanation:

Second equation times 3:

1st equation minus equation above:

Insert to equation:

I need some details... If i can get a little more details with that "check all that apply" and i could get you an answer.
Answer:
A
Step-by-step explanation:
First 4 sets of (x, y) show that when x increases 2, y increases 3. It seems the relationship is linear. But last 2 set show that x increases 1, y increases 3. So the relation is NOT linear