Check whether the number 25110 is divisible by 11

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.

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)