Adiagnol of a cube measures 15 cm and the length of an edge is 75 square root. what is the length of the diagnol of a face of the cube? round to the nearest tenth
a. 7.1
b. 12.2
c. 13
d. 15

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?