Each person is charged 18*2=$<<18*2=36>>36 per month

So they get 36*300=$<<36*300=10800>>10,800 per month

# Answer

10800
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A gym charges its members $18 twice a month.  If it has 300 members how much does it make a month?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
10800
A gym charges its members $18 twice a month.  If it has 300 members how much does it make a month?
train