According to cbs, in 2010 the average cost of a super bowl ticket was $3509. this is $441 less than the cost of a 2015 ticket. how much was a ticket in 2015?

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3