The final answer is choice C) cos(x)Have a look at the attached image to see my work on how I got that answer.
Answer:
<h2>x < - 2</h2>
Step-by-step explanation:

First subtract 7x from both sides of the inequality
That's

<u>Add 10 to both sides of the inequality</u>

<u>Divide both sides by - 15</u>

Since the denominator is negative the sign will change
We have the final answer as
<h3>x < - 2</h3>
Hope this helps you
This an undefined equation however it can be seen as
0/0=1
OR
0/0=0