First find how many months Jason worked as a bartender: 9 years * 12 months/year = <<9*12=108>>108 months

Then find how many months Jason worked as a manager: 3 years * 12 months/year + 6 months = <<3*12+6=42>>42 months

Then add those two amounts to find his total amount of work experience: 108 months + 42 months = <<108+42=150>>150 months

# Answer

150
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jason worked for 9 years as a bartender and 3 years and six months as a manager. How many months of work experience does he have total?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
150
Jason worked for 9 years as a bartender and 3 years and six months as a manager. How many months of work experience does he have total?
train