The rate for one unit of a given quantity is called a(n)

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?

Find two numbers if their sum is 91 and the ratio is 6: 7?

Need same math paper but the back now i hope your able to read it cleary i need with hw