List the X values that are included in each italicized event.
a. You can miss at most 2 quizzes out of 16 quizzes (X = number of missed quizzes).
b. You go to Starbuck's at least 4 days a week (X = number of Starbuck's visits).
c. You are penalized if you have more than 3 absences out of 10 lectures (X = number of absences).