tmara is making a medium length necklace. write an expression that shows how nuch it will cost tamara for the chain, pendant, and b beads that cost $0.25 each. Then find the total cost of the necklace if tamara uses 30 beads.

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.