X^2 + 18x + 50 = 9solve by completing the square

Given that anna wants to spend less than $60 for the subscription and only full month subscriptions are offered, what is the maximum number of months that ana can subscribe

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

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.