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Mathematics, 26.09.2019 15:00 queengenni

The temperature at a mountain base camp was −4 degrees celsius on saturday. sunday morning, the temperature was 2 degrees celsius lower than what it was on saturday. by sunday evening, the temperature was 1 degree celsius lower than what it was that morning. what was the temperature at the base camp sunday evening?

a. −9 degrees celsius

b. −8 degrees celsius

c. −7 degrees celsius

d. −5 degrees celsius

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