What is the percent decrease of your b=.085​

Show me how you find the value of each variable and determine what the value of each variable is you i appreciate it : )

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.

If m 17 27 90 63 ** picture is attached