Yes the relation is a function
Answer:
5
Step-by-step explanation:
You've got 3 values there.
Get the sum of 65, 30 and 25 and divide their sum by the number of values that exist, which in this case is 3.

Answer:
40
Answer:
I think the answer is b or c
Answer:
-125
Step-by-step explanation:
sea level is zero so cant be above that and the answer has to be below -100 and the only option is -125