Which expression can be used to find the quotient of 15 and One-third? 15 + one-third 15 minus one-third 15 times one-third 15 divided by one-third QUICK PLS

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. 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.