Sarah is organizing a bake sale to raise funds for her school. She plans to sell cookies and brownies. Cookies are priced at 75 cents each, and brownies are priced at $1.25 each. If she starts with $10 worth of quarters to make change and sells 20 cookies and 15 brownies, how much money will she have left after making change for all her sales? Let's think step by step and output the final answer within \boxed{}.
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