City of population million is expected to experience a decrease in population every years. a. what is the -year decay factor? 19 what is the yearly decay factor? round your answer to four decimal places. 19 the yearly decay rate? round your answer to two decimal places. 19 b. use the -year decay factor to create an exponential population model that gives the population (in millions) after years. enter the exact answer. c. create an exponential population model that gives the population (in millions) after years, assuming a continuous yearly decrease. d. compare the populations predicted by the two functions after years. what can you conclude? round your answers to four decimal places.