A wall of a building is made from blocks that are each one cubic foot the wall is 6 feet high and 6 feet wide. a window is made by removing some blocks as shown below the window is 2 feet high by 2 feet wide. what is the value of the wall after the window is made?

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.