Suppose one person in your team has two x2-tiles, three x-tiles, and one unit file on his desk and another person has one x2-tile,
five x-tiles, and eight unit files on her desk. You decide to put all of the tiles
together on one desk.
What could you call this new group of tiles? Write it as a sum.

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.