Question

write an expression to model the following situation: when rafa woke up, the temperature was –9°c. by noon, the temperature had increased by 7°c. what was the temperature at noon? a. –9 – 7 b. 9 7 c. –9 7 d. 9 – 7

Answer 1

the answer is -9+7 because it INCREASED which means adding ( + ).