Graph the function. HELP ASAP!

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.

Solve this problem! extra ! 3025/5.5 = a/90.75

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?