One hundred high school seniors were asked whether they were taking a science class or a math class. The results are shown here:
Course(s)
Number of Surveyed Students Enrolled
Science
29
Science and Math 22
Neither
14
A surveyed student is selected at random. What is the probability the student is taking science or math?

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)

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?