This exercise uses the population growth model. A certain culture of the bacterium Streptococcus A initially has 7 bacteria and is observed to double every 1.5 hours. (a) Find an exponential model n(t) = no2t/a for the number of bacteria in the culture after t hours. n(t) = 7.2 (b) Estimate the number of bacteria after 28 hours. (Round your answer to the nearest whole number. ) bacteria (c) After how many hours will the bacteria count reach 10,000? (Round your answer to one decimal place.) t = 15.7 Need Help? Read It Watch It Viewing Saved Work Revert to Last Response Submit