Answer:
i would say b
Step-by-step explanation: if they all slept 4 hours a night then all 9 would have a total of 36 and a night would be 1 so 36 to 1
Answer:
Up to 60% of the human adult body is water.
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
240
Step-by-step explanation:
Given

Also given

Lastly,

Answer:
true
Step-by-step explanation:
your welcome