Find an explicit formula for this sequence: 80, 20, 5, 1.25, ... an = 80(4)n-1
an = 80 - 60n an = 80(0.25)n-1
an = 1.25 + 3.75n

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.

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

Consider the enlargement of the pentagon. what is the value of x, rounded to the nearest tenth? 2.1 centimeters 3.3 centimeters 7.0 centimeters 15.0 centimeters