How much is the free cash flow of a firm with revenues of $72 million, operating margin of 42.4%, net margin of 18%, tax rate of 17.6%, and reinvestment rate of 62.7%? Answer in million dollars, rounded to one decimal place (Divide the dollar value you find by 1 million and round to one decimal place, e.g., $4,264,742 = 4.3)