Rimi sales last year were $335,000, its operating costs were $212,500, and its interest charges were $14,500. What was the firm's times interest earned (TIE) ratio? a) 4.79 b) 8.45 c) 8.76 d) 7.80 a. d) 7.80 b. a) 4.79 c. c) 8.76 d. b) 8.45