Can someone me with these two? ? (with a clear answer )

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

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.