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At Starbucks, there are three sizes of coffee drinks, Small (200 mL), Regular (400 mL) and Large (800 mL), and they cost $2.25, $3.75, and $5.75, Respectively. On one evening Starbucks sold 39 coffees, the total volume of the coffee sold was 19,800 mL, and the amount of money made in coffee sales was $129. Using Cramer's rule how many of each size of coffee did customers buy that evening? (Submit your solution BY your HAND-writing)