19. The growth of bacteria in a culture can be modeled by the function A = Age, where A is the amount of bacteria left after hours and A, is the original amount of bacteria. If the culture begins with 150 bacteria and there is 600 bacteria 7 hours later, find the approximate growth rate. A. 16.5% B. 17.6% C. 19.8% D. 21.3% *Show/Illustrate/Explain all work t

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