ella and margret were at a carnival they each got a ticket for the ferris wheel ella got a snow cone and margret got cotten candy ella had a certificate for 6 dollars off the cost margret paid the rest which came to 12.75 each ferris whell ticket was 5 and a snow cone was 3.50 what was the cost for the cotton candy?

5 dollars
5.25 dollars
2.50 dollars
7.25 dollars