There are 350 x 70/100 = <<350*70/100=245>>245 pine trees.

Therefore, 350 - 245 = <<350-245=105>>105 trees are not pine trees.

# Answer

105
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
There are 350 trees in the park, 70% of which are pine trees. How many are not pine trees?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
105
There are 350 trees in the park, 70% of which are pine trees. How many are not pine trees?
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