Which is greater -1 3/4 Or -2.3

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.

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

In the diagram of circle o, what is the measure of zabc?