Please help me I’ll give brainliest to whoever answers

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.

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20

Which graph represents the function f(x)=4[x]?