Angela painted 3/8 of a room. todd painted 2/5 of the same room. what part of the room has been painted

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)

(x-5)1/2+5=2 what is possible solution of this equation