9. If, in the most recent veyear period, not the original period, production decreased from 128,000 to 100,000 units, answer the following given the ensuing information. 0 Current production P = Po 6"", P 2 0 0 Original production Po > 0 at time T = 0 0 Time T > 0 in years since original production 0 Constant K i 0 9.1 Time required for a 50% decrease in original production 9.2 Time required for a 100% decrease in original production 9.3 Original production