you have to look at the number the tickets are being sold by. they are being sold by three then think about how the third ticket cost equals to $2.40. think what number you could add 3 times to get $2.40. then use 80 and add it 3 times to get 240.
First you do the parentheses wich is (3 + 1 ) and that equals 4 and now you do 6 times 1 and that eqal 6 and then you multiply 6 by 4 and the answer is 24
