Please help will give brainlest.

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?

How many lines can be drawn through points j and k? 0 1 2 3

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?