A clothes shop has some special offers. T-shirts are buy one get one free and jumpers are 3 for 2.
The normal price of a T-shirt is £5.20 and the normal price of a jumper is £10.50.
How much does it cost to get 6 jumpers and 6 T-shirts using this offer as appropriate?

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.