What is the best estimate for the product 289 and 7? make it clear to understand : )

In the rectangle below ac=30 units what is de

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.

Joanie watched 1 out of three of a movie in the morning