Mathematics Enhanced Sample Scope and Sequence

An oil refinery in Oklahoma sells 50% of its total production to a Chicago distributor, 20% to a Dallas distributor, and 30% to a distributor in Atlanta. Another refinery in Louisiana sells 40% of its production to Chicago, 40% to Dallas, and 20% to Atlanta. A third refinery in Texas sells the same distributors 30%, 40%, and 30% of its production. ................
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