Marie is paid $0.78 for each of the first 100 usable pieces she produces in a day, and $0.90 for each unusable piece over 100. what is marie’s gross pay for a day in which she produces 108 usable pieces and 12 unusable pieces?

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?