Cactus, Inc., had revenues of $86 million, cash operating expenses of $25 million, and non-cash depreciation expense of $13 million during the year. Also during the same year, the firm purchased $6 million of additional equipment during the year while increasing its working capital investment by $16 million. The tax rate for Cactus is 25%. What is Cactus' free cash flow for the year?

Answer to the nearest $0.01 million