Question
A bookshop has a sale promotion for staplers.
One stapler costs 3.50.
Buy 2 and get 1 stapler free.

How many staplers can Japheth get if he spends $21 on the staplers?
3 m

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A bookshop has a sale promotion for staplers.
One stapler costs 3.50.
Buy 2 and get 1 stapler free.

How many staplers can Japheth get if he spends $21 on the staplers?