york humber high school , in toronto , ontario canada is raising money for a field trip to the royal ontario museum . The total cost of the field trip is $1422. The museum charges $18 per student ,S , and $23 p chaperone , C , for admission. in addition to the admission cost for the museum , the school must also pay a one time rental fee of $762 for a 1- day charter bus. If there were 6 chaperones that attended the trip the equation is