matt4k
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The cost to mail a first-class letter is $0.55 for the first ounce. Each additional ounce costs $0.20. Fractions of an ounce are rounded up to the whole next ounce. How much would it cost to mail a letter that weighs 2.7 ounces?

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22.10Step-by-step explanation:

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Answer:

1.15 dollars

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