Sales for a company were 6 million dollars more the second year than the first, and sales for the third year were tripled the sales for the second year. If sales for the third year were 24 million dollars, what were sales, in millions of dollars, for the first year?
Let X be the sales for the first year.
Sales for the second year were X + $6 million.
Sales for the third year were 3(X + $6 million) = $24 million.
Thus, 3X + $18 million = $24 million.
Thus, 3X = $6 million.
Thus, X = $<<2=2>>2 million. Answer: \boxed{2}.