The more expensive bike could be a bigger size so in stead of being a 20 inch it could be a 24 inch, another option is that one bike is made by a lower brand name company hile the expensive one is a better well know company so in that case the extra $100 is just a added price for the name. Last option is one's on sell and ones not. I hope this helped! :)
Answer:
45
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Answer: n = -9 x2 = -1
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i might be wrong idk that what i got for my answer
1.91 to the nearest tenth is 1.9
Answer: 5/3
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