The firm's most recent sales were $12 million. Sales were $6 million 5 years earlier. At what rate have sales been growing per year? Calculate as many digits as possible. Your answer should include a financial equation with parameters, algebraic equation, and answer in sequence. (1+r)" - 1 FVIF,+ = (1 + r) FVIFAA 1 1 (1+1) PVIF. 1 (1+r) PVIFAR