A math club is organizing a competition and needs to prepare gift bags for all participants. Each gift bag contains 3 pencils, 2 erasers, and 4 notebooks. If the club has 25 participants, how many total pencils, erasers, and notebooks are needed? Additionally, if the total cost for each pencil is $0.50, each eraser is $0.25, and each notebook is $1.00, what is the total cost for all the gift bags? Let's think step by step and output the final answer within \boxed{}.
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