une boite contient 28 bougies: des rouges, des blanches et 4 jaunes. il y a trois fois plus de blanches que de rouges. combien de bougies rouges y a-t-il? ​

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.