Mr shah is working out the cost of the electricity he used in April Mr Shah has to pay
20p for each of the first 70 units used in April
and 10p for each of all the other units used in April.
Work out the total cost of the electricity he used in April.

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.