1) any angle measure, $\theta$, given in degrees, is equivalent to $\theta \pm 360$ degrees.

2) first where does the line intercept the x axis. It does so when $y=0$. Plugging that in it should be clear this occurs at $x=-2$

Thus we have the points (-2,0) and (-5,7)

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}=$

Spoiler: