The 7th grade class plans to collect at least 600 pairs of socks for people in need. so far, 135 pairs have been collected. how many pairs of socks does the class need to collect over the next 5 days

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?