Answer:
Ive already seen several questions incomplete like this.
Explanation:
Whats your question?
What do you need help on?
I took algebra a while ago so I may be able to help you.
I would probably be calm and coaperative with them. I would do this because the more nervous and unsure you act, the more defencive they will most likely be.
I hope this helps :)
The answer is -4 while the element is chlorine