welll i kinda don get ur question but ummmm if u say like the graetest number then 48
Any line y=m is horizontal. The y-coordinate of any point lying on such line is m, only x-coordinates change.
If y=1, then two points on the line are (x₁,1) and (x₂,1).

So, the slope of this and any horizontal line is 0.
The answer is a.
<span><span>1. </span>Simply divide the 520 to 36 and that makes it 15</span>