Last year there were 40 members in the drama club. This year the club has 32 members. By what percentage has the number of members decreased

Question: what is the value of x 4x-2= (-7) +5x. it would be greatly appreciated if someone could actually explain to me step by step

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.

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?