Lea bought one book for $16, three binders for $2 and six notebooks for $1. Calculate the total cost of her purchases. Let's answer step by step:
The binders cost 3 binders * $2 / binder = $6. The notebooks cost 6 notebooks * $1 / notebook = $6. The amount of Lea's purchases is: $16 + $6 + $6 = $28. The answer: 28.