Which function has a range limited to only negative numbers?

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

For what value of x does 4x = (1/8) x + 5?

Select the correct answer and solve for y