One example of irony is that Tess is chosen to be the one for the lottery yet in the beginning she is portrayed to be a carefree woman that cares for her family and a person the town likes. Also old Man Warner makes fun of towns that are wanting to get rid of The Lottery and he thinks that means they will go back to primitive times. Though it is the opposite because that town is moving forward by abandoning dated traditions to match moral standards.
The answer is situational irony
The answer would be 54.50 because 2.24x3=6.72 and 16x1.79=38.64 and you would need 6 packs of hearts and 6x3.19=19.14 and all that equals $54.50.
The lines which are a flashback here are: She thought of her last day in middle school, seven years ago, when Sarah had given her an iPod. She had felt ecstatic that day when she realized she would be able to listen to her favorite songs and fend off comments from her cousins about how little she knew about music.