A teacher wants to choose a student at random. The teacher decides to choose the first person to walk through the classroom door at the start of the lesson. a. Explain why this is not a good method.
b. Suggest a better method.

It is not a good method because the first person to walk through the door should be rewarded for being on time and it is pretty much  that the first person to walk in is always the first to walk in  

They should have a  volunteer and make them do it step by step for other kids to see or if someone is late  make them do it

a=r

d=q

c=p

b=s

hope this !

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg