Hannah can paint a room in 9 hours. destiny can paint the same room in 15 hours. how long does it take for both hannah and destiny to paint the room it they are working together?

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

cultural/diplomatic relations. most medieval japanese   culture has chinese origins. writing, architecture etc.