These are the first sentences in the short story, "the gift of the magi," by o. henry: "one dollar and eighty-seven cents. that was all. and sixty cents of it was in pennies." a. simplify the equation that represents the value of the coins. make it an equation that expresses the value of quarters, dimes, and nickels. b. is it possible to have exactly 60 pennies in $1.87? explain.

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?