Answer:
the ewser is 4
Step-by-step explanation:
sence x=1 1+3 =4
6. addition property of equality (because 7 was added to each side)
7. A function has no repeating x values.....so the one that is not a function WILL HAVE repeating x values......and that would be C because it has repeating 2's
Answer:
You add all them then divided 4 i think