Léa bought one book for $16, three binders for $2 and six notebooks for $1. Calculate the total cost of her purchases.
Stream of thoughts:
28
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 final answer: 28