The teacher distributes 5 pencils per student. Can you tell how many pencils are needed, given the number of students? (Use s for the number of students.)

Solution: Number of students = s Number of pencils distributed per students = 5 Number of pencils required For n = 1 is 5 x s For n = 2 is 5 x s For n = 3 is 5 x s ∴ Rule is 5s where s represents the number of students.