.30 elves exit Chocolatetown (not from Vanilaville) 20% of elves move from Chocolatetown to Vanillaville 50% of elves move from Vanillaville to Chocolatetown 10 elves enter Vanillaville (not to Chocolatetown) Let r(t) and y(t) be the number of elves in Chocolatetown and Vanillaville respectively, where t is in days and let x(t) = y(t) Suppose our model is x' = Ax + f

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