A motel bills its customers by charging a flat fee for the first night and then adding on a fixed amount for every night thereafter. If it costs George $\$155$ to stay in the motel for 3 nights and Noah $\$290$ to stay in the motel for 6 nights, how much is the flat fee for the first night?
Question:
A motel bills its customers by charging a flat fee for the first night and then adding on a fixed amount for every night thereafter. If it costs George $\$155$ to stay in the motel for 3 nights and Noah $\$290$ to stay in the motel for 6 nights, how much is the flat fee for the first night?
Answer:
Let's think step by step.

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A motel bills its customers by charging a flat fee for the first night and then adding on a fixed amount for every night thereafter. If it costs George $\$155$ to stay in the motel for 3 nights and Noah $\$290$ to stay in the motel for 6 nights, how much is the flat fee for the first night?
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