the first floor of a tiny house has a length of 12 feet . the bedroom is 3 feet wide and the kitchen is 10 feet wide. which expression represents the total area where the length is the sum of two numbers​

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?