8:35 PM * 87%. D+ Aa a Change: A Modeling Approach to College Algebra, 6 t dl practical terms. 10. Flushing Chlorine City water, which is slightly chlorinated, is being used to flush a tank of heavily chlorinated water. The concentration C C(t) of chlorine in the tank r hours after flushing begins is given by C 0.1 + 2.78e-0.37t milligrams per gallon a. What is the initial concentration of chlorine in the tank? b. Express the concentration of chlorine in the tank after 3 hours using functional notation, and then calculate its value. A Population of Deer animals is introduced into a restricted area such as a wildlife reserve, the population can be expected to grow rapidly at first, but to level out when the popu- 11. When a breeding group of