Which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces?

Aconstruction worker needs to put a rectangular window in the side of a building he knows from measuring that the top and bottom of the window have a width of 8bfeet and the sides have a length of 15 feet he also measured one diagonal to be 17 feet what is the length of the other diagonal