please help !! write an expression that can be used to determine the total cost.

Answer:
y=7x
Step-by-step explanation:
If y is the total cost and x is the number of tickets.
Answer:
7n
Step-by-step explanation:
Because each ticket costs $7 and if the number of tickets is n, Lets say n=4
7x4 so there would be 4 tickets
Tickets=N
$7equals price