Cuál es el ares de una cruz

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 f(x)=x+7 and g(x)=1/x what is (fog)(x)

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re