Average rate of change of the functions? (easy)

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?

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Which statements are true about additional information for proving that the triangles are congruent check all that apply