Answer:
x = -8
Step-by-step explanation:
-23 + 7 = -16
-16 ÷ 2 = -8
2 × -8 =-16 - 7 = -23
Here is a photo attached to the bottom right here. Hope this helps!
Answer:

Step-by-step explanation:

E, D, and A.
well because it can be divide my 5.
Answer:
It woule be c and d, so a)
Step-by-step explanation:
Only a and b are functions.