Agrocery store sells 6 pounds of apples for $12 dollars. what is the unit price of the apples

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.

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Pls never taught i’m really confused and i rlly need