Students from Shelton Middle are going on a field trip to an amusement park. Those students who have annual passes will pay $10. Other students will pay $35. The school collected $1,375 for 50 students. Which system of linear equations models this situation? a) 10x + 35y = 50

x + y = 1,375

b) 10x + 35y = 1,375

x + y =50

c) 10x + y = 50

35x + y = 1,375

d) 10x + y = 1,375

x + 35y = 50

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?