Ok, I'm on six grade but I hope this can help you....
What we know...
- We know that each bag of chips costs $3 and each liter of soda costs $2.
- The Clue: He needs to buy at least 2 bags of chips and at least 1 liter of soda.
- He has up to $30 to spend.
I hope this could help, think about it and ask me any questions :)