Phillip added 15 pencils to his collection. He then gave 30 pencils to a friend. Write and then evaluate an expression that shows Phillip's net gain or loss.

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.

The variable in a relation who’s value depends on the value of the independent variable is called what?

Simply 8x squared + 5(7x squared- x) - 2x =