Why are inequalities important in equations

If a || b and e || f , what if the value of y ?

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.

Simplify. 3(4+4x) (type your answer in with no spaces)