Really need help! anything would be appreciated

On a piece of paper graph f(x)=5•(0.4)^x

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

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.