Help please and thanks.

Which is the completely factored from of xy^3-x^3y

Answer asap ! the shortest path from point a to point b goes through a pond. to avoid the pond, you must walk straight 34 meters along one edge of the pond, then take a 90 degree turn, and again walk straight 41 meters along another edge of the pond to reach point b. about how many meters would be saved if it were possible to walk through the pond? a. 11 m b. 20 m c. 30.45 m d. 21.73 m

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?