The correct answer to this problem would be -3. Based on the points you've provided on the graph, -3 would be the correct common difference. :)
1. Angle PAB is 90 degrees, as it is formed from the tanget to the circle at A, and the radius drawn to A.
2. AB=BC, because tangents drawn to a circle from the same point are equal.
3. PB is Common, so by the side-side-side congruence postulate, triangles ABP and CBP are congruent.
4. So measure of m(BPA)=x/2 and m(ABP)=73/2.
5.



, x= 107 degrees.
<em>Your answer will be, </em><em>"6p - 8"</em>
Thanks,
<em>Deku ❤</em>