Ifeel so stupid, but i need figuring out this problem. i can’t remember how to do it. can someone me ?

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?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles