He has sharpened in 7 times because 35 / 5 = <<35/5=7>>7

He has chopped down 91 trees because 7 x 13 = <<7*13=91>>91

# Answer

91
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Felix is chopping down trees in his backyard. For every 13 trees he chops down he needs to get his axe resharpened. It cost him $5 to sharpen his axe. If he spends $35 on axe sharpening, at least how many trees has he chopped down?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
91
Felix is chopping down trees in his backyard. For every 13 trees he chops down he needs to get his axe resharpened. It cost him $5 to sharpen his axe. If he spends $35 on axe sharpening, at least how many trees has he chopped down?
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