Afaather is four times older than his son. however, 20 years later he will be only twice as old as the son. what's the father's present age?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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

Why do interests rates on loans to be lower in a weak economy than in a strong one