Afootball team gained 9 yards on one play and then lost 22 yards on the next. write a sum of intergers to find the overall change in field position. explain your answer

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. 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.