Answer:
<P = 27°
Explanation:
In a triangle, the sum of all three interior angles = 180
So triangle NOP, <N + <O + <P = 180
Plug in
9x - 1 + 3x - 2 + 2x + 1 = 180
14x = 2 = 180
14x = 182
x = 13
<P = 2x + 1
<P = 2(13) + 1
<P = 26 + 1
<P = 27
Answer:
<P = 27°