Ratio of sandwiches with white bread and brown bread is 10: 3. of the white sandwiches 2/3 are vegetarian, of the sandwiches that are brown half are vegetarian. what fraction of the sandwiches are vegetarian?

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

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.