In order to get your you can do it 2 ways: 1). which is how far up you go (rise) over how far left or right you go (run). 2). which is pick two values and you subtract your second pair from your first pair. You get the same answer either way. In this case, the slope is 1 over 3 or 1/3.
Because the number of sides is 6 so the s go interior angles is 720. So if u want to get x u need to sum up the rest of the angles anf subtract from 720 giving an answer of 130