A schedule of machinery owned by Micco Co. is presented below: Estimated Estimated Total Cost Salvage Value Life in Years Machine A $460,000 $42,000 10 Machine B 225,000 22.500 5 Machine C 492,000 24,000 12 Micco computes depreciation by the composite method. 20. The composite rate of depreciation (in percent) for these assets is 21 The composite life in years) for these assets is