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Mathematics, 22.01.2021 01:00 coronaaa7

Reva woke up one morning and saw frost on the windows. It was -3°C outside. Later in the day, the frost melted. At 3 p. m. it was 1°C outside. Which expression represents the difference between the two temperatures? a.68 - 12
b.❘68 - (-12)❘
c.❘-12❘ - 68

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