I believe its D hope this helps
Answer: Stratified Random Sample
Hope this helps ʕ•ᴥ•ʔ
Answer: - 3.5, -7/3
Step-by-step explanation:
0.62068966 or 18/29 depending on how you want to set it up.
Lol
trouble varies directly as distance
lets say t=trouble and d=distance
t=kd
k is constant
given
when t=20, and d=400
find k
20=400k
divide by 400 both sides
1/20=k
t=(1/20)d
given, d=60
find t
t=(1/20)60
t=60/20
t=3
3 troubles