Can someone me with these 3 questions of you can and show the work too

Hi
1. Temp was 5 at noon and dropped 59 degrees at midnight. 5+(-59)= -54 (B)

2. The stock dropped by 5 points and opened at 93 points that day.
93+(-5)=88 points (B)

3. The temperature fell by 12° over 4 hours.
12÷4=3° decreased per hour (C)

Hope that clarifies these. Let me know if these aren't clear.

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