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Mathematics, 25.10.2021 14:00 holycow4916

The cost to mail a first-class letter used to be $0.40 the first ounce. Each additional ounce costs $0.20. Fractions of an ounce are rounded up to the next whole ounce. How much would it cost to mail a letter that weighs 3.7 ounces?
• $0.60
O $1.00
O $0.90
O $1.20

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