Yes RSVP responses are 200 x 83% = <<200*83*.01=166>>166 guests.

No RSVP responses are 200 x 9% = <<200*9*.01=18>>18 guests.

Guests who responded are 166 + 18 = <<166+18=184>>184.

Guests who did not respond at all are 200 - 184 = <<200-184=16>>16.

# Answer

16
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Sean and Sierra invited 200 guests to their wedding.  If 83% of the guests RSVP with a Yes response and 9% of the guests RSVP with a No response, how many guests did not respond at all?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
16
Sean and Sierra invited 200 guests to their wedding.  If 83% of the guests RSVP with a Yes response and 9% of the guests RSVP with a No response, how many guests did not respond at all?
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