Final answer:
To determine the cost of each rail ticket, subtract the remaining money from the initial total and then divide by the number of tickets. Each rail ticket costs $2, which is option A.
Step-by-step explanation:
The question asks us to calculate the cost of each rail ticket after spending a certain amount of money. You started with $22 and after buying seven rail tickets, you had $8 left. To find the cost of each ticket, you subtract the amount left from the initial amount and then divide by the number of tickets purchased.
Cost per ticket = (Total money - Money left) / Number of tickets
Cost per ticket = ($22 - $8) / 7
Cost per ticket = $14 / 7
Cost per ticket = $2
So, each rail ticket costs $2, which corresponds to option A.