Find a 15% tip on a restaurant meal costing $50.

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?