Ineed some one to write the exact way to do this

Why do interests rates on loans to be lower in a weak economy than in a strong one

Write the expression as a single natural logarithm. 2 in a - 4 in 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.