C. 5x - 15 <span>≥ 85 </span> As we already know, wherever the arrow points is where the equal than or less than sign is going to point. So in this problem, A and B are not possible answers. We then can identify that if we added 85 to the left side, the number line would be a lot higher than it currently is. If you need further explanation, don't hesitate to ask.
