Write an equation to match the story and diagram below. Solve for X in the equation

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Extra points! find the missing dimension! need asap

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?