Help please!! i need to get my grade up by saturday

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

Which value of y will make the inequality y< -1 false?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no