Acolony of bacteria is growing exponentially according to the function below where t is in hours about how many hours will take for the population to reach 200? b(t)=4•e^0.8t a.20 b.5 c.15 e.10

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.