Simplify by writing the expression without absolute value bars. |w-2| for w < 2

What is the value of the digit 1 in the number 13?

If you answer right ill give brainliest, : )

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.