The number of chaperones at a school field trip must be 1/5

Two teacher sponsors. Write a rule for the number of chaperones that must be on the trip. Write ordered pairs to represent the number of chaperones that must attend the trip when there are 120,150,200, and 210 students.
The rule would be:
c = # of chaperones
s = # of students
c = 1/5s + 2
Plug those numbers of students into "s" in the above equation. Your answers will be the second number of the ordered pair.
C= S/5 + 2
C=Chaperones
S=Students
(S,C)
(120,26), (150,32), (200,42), (210,44)

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