Bernie loves to make bead bracelets. she bought a box of 5,000 beads. bernie used 3.78 x 10^3 beads last month and used 2.64 x 10^2 beads this month. how many beads has bernie used in the past two months? how many beads will be left over after these two months?

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?