The median weekly salary of a person with a high school degree in the United States is $718 compared to $1,451 for someone with a Master's degree from college. What is the percent increase for someone's salary with a Master's degree compared to a high school degree? (Round to the nearest whole percent)

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