City a had a population of 175,000 residents in 2018. the population is increasing at a rate of 10% per year. city b has a population that can be modeled b(t) = 350,000(0.97)t where t represents the number of years since 2018.
what is the initial population of city a?
what is the growth rate of city a?
what function model for the population of city b?
does the model for b(t) represent an exponential growth or decay?