Find the value of the polynomial 7y - y2 + 5 at y = -1.

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

What is the difference between the equations of a vertical and a horizontal line?

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