Identify the place value of the underlined digit 6,704,456

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.

Reflect the point (7,0) across the y-axis

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?