Sonora, Inc., had revenues of $$20$ million, cash operating expenses of $$10$ million, and a non$-$cash depreciation expense of $$4$ million during $2008.$ The firm purchased $$2$ million of additional equipment during the year while increasing its working capital investment by $$1$ million. The firm had $$2$ million in interest expense. The tax rate for Sonora is $40$ percent. What is Sonora's free cash flow for $2008?$