On a standardized exam, the scores are normally distributed with a mean of 300 and a standard deviation of 50. Find the Z-score of a person who scored 150 on the exam.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field