10 I think..I might be wrong
Answer:
<h3>
5.0</h3>
Step-by-step explanation:

I honestly do not know this seems to me to be a trick question
Answer:
Step-by-step explanation:
Which of the relations has a domain of (-1, 2, 6)?
Options
A- {(-1,2), (2,1),(6,2)}
B- {(-1,2), (0,1), (3,2)}
C-{(-6,2), (1,1), (2,2)}
D- {(-2,2), (1,2), (6,4)}