What is the average number of books read per month by a group of 20 students if the data set is: [2, 3, 4, 5, 2, 3, 4, 6, 7, 1, 3, 2, 2, 4, 5, 3, 4, 5, 2, 6]?
+
What is the limit as x approaches 3 of (2x^2 + 5x - 8)/(x^2 - 9)?
+
What is the simplified form of the mixed number 2 3/4 when factored?