Describe the transformation that mape the pre image A to the image A

What is the smallest integer n such that n\sqrt{2} is greater than 20

How do i do this activity, is appreciated

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.