What is the solution for x in the system?
y=8
y=2^x

7x+8y=-18, 4x-9y=-3 solve the system of equations

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?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much