<span>C. (sinx(1 - sinx))/((1 + sinx)(1 - sinx))</span>
The slope is 2.
hope I helped.
For number 1. it is wrong. It is fresh water. Ocean water is salt water. I don't know the rest, sorry. I will come back if I find out though! :D
Answer:
I'm sorry for what you are going through, I went through something similar and it gets better
Step-by-step explanation: