graph |x| with solid line then move the whole thing left 2 which give you (0,0) to (-2,0)
because it is less than equal to, you shade the part below the V then you can clearly see which point doesn't belong in the shaded part which is the point that is not part of the solution.
540 degrees is what the interior of a pentagon should add up to. So you do 540-156-72-98-87=127. The measure of the final interior angle is 127 degrees.
