Final answer:
After subtracting the cost of the discount movie pass from the total amount spent, the remainder is divided by the cost per movie ticket to find that Fern purchased 12 movie tickets.
Step-by-step explanation:
To determine how many movie tickets Fern purchased, we need to calculate the total cost of the movie tickets alone (excluding the cost of the discount movie pass) and then divide by the cost per ticket.
Fern spent a total of $61.99, including the cost of the discount movie pass, which was $10.99.
Therefore, the amount spent on movie tickets alone is
$61.99 - $10.99 = $51.00.
Now, we divide this amount by the cost of one movie ticket, which is $4.25.
$51.00 รท $4.25 = 12
Hence, Fern purchased 12 movie tickets.
The correct option is: C. 12.