Alicia opens her piggy bank to find only nickels and dimes inside she counts the coins and finds that she has 61 coins totaling $4.85 how many nickels were in the pay bank and how many dimes?

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.