SOMEONE HELP ME PLEASE

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?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each