In january, a bookstore sells 450 books, but in february, it sells only 300 books. what is the percent of change from january to february?

66.7%
-33.3%
50%
-50%

Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle