Stamp collection scott has collected stamps for 4 years. the table at the right shows the number of stamps from foreign countries in scott's stamp collection. scott has 315 more stamps from the united states than from canada. each stamp from the united states is worth 49 cents. scott wants to know the total number of stamps he has in his collection.

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?