Archie needs $3 x 3 = $<<3*3=9>>9 per day to buy 3 antibiotics.

Therefore Archie needs $9 x 7 = $<<9*7=63>>63 to buy antibiotics that will last for a week.

# Answer

63
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Archie received his medical receipt from his doctor, and he needs to take antibiotics three times a day. If antibiotic costs $3 each and he needs to take it for a week, how much money does he need to buy the antibiotics?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
63
Archie received his medical receipt from his doctor, and he needs to take antibiotics three times a day. If antibiotic costs $3 each and he needs to take it for a week, how much money does he need to buy the antibiotics?
train