Answer:
I think it is this because it seems as if It is 2 separate equations.
a.x=9-2y/3
b.x=3+y/3
Answer:

Step-by-step explanation:

Hope this will help you :))
Answer:
I think the answer is 24
Step-by-step explanation:
hope its helpful
Answer:
1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392.
UMM.. Not sure
might not be all of them but i guess it should help you:/