John needs to buy new notebooks for his studies. He plans to buy 3 notebooks every week for 4 weeks. Each notebook costs $2.50. If John buys 2 pens each costing $1.50 during the first week and spends an additional $5.00 on a folder during the second week, what is the total cost of all the supplies John buys over the 4 weeks? Let's think step by step and output the final answer within \boxed{}.
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