9 9 The half life of silicon 32 is 710 years If 30 grams is present now how much will be present in 300 years Round your answer to three decimal places A 1 604 B 22 383 C 29 134 D o 10 An endangered species of fish has a population that is decreasing exponentially A Agekt The population 9 years ago was 1500 Today only 1000 of the fish are alive Once the population drops below 100 the situation will be irreversible When will this happen according to the model Round to the nearest whole year A 51 years from today C 52 years from today B 50 years from today D 53 years from today 10