Aweb music store offers two versions of a popular song. the size of the standard version is 2.9 megabytes (mb). the size of the high-quality version is 4.5 mb. yesterday, the high-quality version was downloaded three times as often as the standard version. the total size downloaded for the two versions was 3772 mb. how many downloads of the standard version were there?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons

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.