First find the area of the painting: 2 feet * 4 feet = <<2*4=8>>8 square feet

Then find the area of the wall: 5 feet * 10 feet = <<5*10=50>>50 square feet

Then divide the area of the painting by the area of the wall and multiply by 100% to express the answer as a percentage: 8 square feet / 50 square feet * 100% = 16%

# Answer

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<|im_start|>system
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<|im_start|>user
Hannah hangs a 2 foot by 4 foot painting on a 5 foot by 10 foot wall. What percentage of the wall is taken up by the painting?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
16
Hannah hangs a 2 foot by 4 foot painting on a 5 foot by 10 foot wall. What percentage of the wall is taken up by the painting?
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