A schedule of machinery owned by Mallon Co. is presented below: Estimated Estimated Total Cost Salvage Value Life in Years Machine A $260,000 $20,000 12 Machine C 390,000 30,000 10 Machine M 195,000 15,000 6 Mallon computes depreciation by the composite method. 8084C11. The composite rate of depreciation (in percent) for these assets is a. 10.18 b. 10.77. c. 11.03. d. 11.67. 8185. The composite life (in years) for these assets is a. 9.1. b. 9.3. c. 9.8. d. 10.0