Camila was out at a restaurant for dinner when the bill came. Her dinner came to $32. After adding in a tip, before tax, she paid $40. Find the percent tip.

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Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?