Answer:
c = 12.75n + 12
c = 15.75n
Explanation:
Let
c = total cost of the ticket
n = number of people buying tickets
Buying tickets online
c = 12.75n + 12
Buying from the box office
c = 15.75n
This can be represented by the system of equation:
c = 12.75n + 12
c = 15.75n