Which shows the expressions rewritten with the least common denominator? 7x-2/4x^2 and x-1/8x

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.

Which of the following are accepted without proof in a logical system? check all that apply.

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?