Answer:
1.a
2.b
Step-by-step explanation:
The first column is the domain, while the second column is the range. Therefore, 1 is a, and 2 is b. Hope this helps!
Answer: x = 2
Step-by-step explanation:

Replace y in the first equation by the value of y in the second equation.

Is there something missing on the third option? None of the other options are wider
Answer: look at the picture
Step-by-step explanation: hope this help
We need a number to complete

Since we have

And so the expanded square is
