Mr. diaz bought a board that was 12 feet long. he cut the entire board into equal pieces that were 1/3 foot long. how many pieces did mr. diaz have?

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.