A violin was originally priced at $699.00. It was marked down 15%. Then it was moved to a clearance rack marked "Take an additional 10% off the lowest marked price." What was the final price of the violin? *

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.