A book store must order books two months before each semester ends. The manager believes that the number of books that will be sold for any particular course is related to the number of students registered for the course when the books are ordered. The data below show the past records of the bookstore. 2 SEMESTER NUMBER OF 36 STUDENTS 1 3 4 6 7 8 9 10 11 12 28 35 39 30 30 31 38 36 38 29 26 REGISTERED NUMBER OF 31 29 34 35 29 30 30 38 34 33 29 26 BOOKS SOLD Predict the number of books that would be sold in a semester if: (a) 33 students (b) 25 students; and (C) 40 students are registered in a particular course

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