Sandbag dropped from balloon - find final velocity

[Chupu]

1. Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.50 m/s. At a height of 205 m, the balloonist maintains constant altitude for 10.0 s before releasing a small sandbag. What is the horizontal displacement of the balloon? How far from the launch site does the sandbag land? How long it takes the balloon to reach the 205 m? What is the final velocity of the of the sandbag?

Thank you guys :)

 

[Chupu]

My guesses are the

horizontal displacement: 190m
how far from launch site: 180m
the balloon took: 82s
the final velocity: 6.018m/s

 

[lewando]

Why guess? All of these things are exactly knowable. What equations did you use for each result?