An epidemic has hit minecole city. its population is declining 34% every hour. in just 3 hours, there are only 25,143 people left in the city. what was the initial population in the city before the epidemic broke out? !

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.