All you need to do is convert this to Kelvin.
Add 273.15 to Celcius to find Kelvin.
255.15 kelvin
X = # of woodwind instruments
y = # of brass instruments
2x = y
150 = x + y
I hope this helps you!
V = Displacement / Time
V = 5 m / 15 s
V = 1/3 m/s or 0.33 m/s
