Carlos is saving up to buy two new books. He has saved 60% of the cost of one book costs $18 and 30% of the costs of another book that costs $21. How much more does he need to save?
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Home » Mathematics » Carlos is saving up to buy two new books. He has saved 60% of the cost of one book costs $18 and 30% of the costs of another book that costs $21. How much more does he need to save?