Answer:
a
Explanation:
Speak loudly to command everyone's attention or add his opinion.
Reason why i say this is because
1. Adding his own would cause a fight unless the group is calm about things like that.
2. Reviewing the ground rules is dumb everyone has a strong opinion about something so it not that
3.Sitting and waiting takes while since people fuss take long plus someone might drag him into the fuss, but i might be wrong
(sorry if you got it wrong T>T)
b
Explanation
2h đầu đi được 100km
3h sau đi được 90km
=> AB = 190km đi trong 5h
vận tốc trung bình = 190/5=38km/h
That equals 222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222,222
The answer is B.
Brainliest pleasee?