Lindsey has $20 to spend. she needs to buy exactly 2 pillets. she spends the remaining amount buying coss. how many coss does lindsey purchase?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

What are the exclude value of mn+3m

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.