Which shows 2/3 and 3/4 written as a pair of fractions with a common denominator? a. 2/3 and 4/3 b. 6/9 and 6/8 c. 2/12 and 3/12 d. 8/12 and 9/12

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.