One of the methods of separation of homogeneous mixtures is called distillation and it is based on the various boiling points of the component of mixture. Heating the mixture, the component that has the lowest boiling point will evaporate and the separation can be done. the other method is called chromatography.so the answer is d.distillation! hope this helped!
T=7556=165x+2771 we need to solve for x, number of years after 1996. 165x=7556-2771=4785 x=4785/165=29 It will be in year 1996+29=2025 that estimated fees and tuition average $7556