Answer:

Step-by-step explanation:

Because the x numbers are used more than once it cannot be a function. As for the the relation if its going through the origin then it would be a relation. im going to go with D
Answer:
I think its 8a because in a regular octagon we have 8 sides.
Answer:
1/8 or
1 1/2
Step-by-step explanation:
necesitas contar la xx