Write an inequality to model the same situation if I had to make more than $40.

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.

What number is 7 units left of -15?

What is the value for this expression? 2e-5