When rolling a standard die, what is the probability of not getting a perfect square?

What is the reflection image of (5,-3) across the line y = -x?

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

Two numbers have a sum of -19. one number is x. what expression represents the other number?