HELP ME PLEASE FAST1

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Plot the intercepts to graph the equation

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.