At 9:00 a.m., the temperature at an Arctic observatory was -12 f . By 5:00 p.m., the temperature had risen 5 degrees. Over the next three hours, the temperature had dropped 2 degrees.
What was the temperature at 8:00 p.m.?
A. -19 f
B. -15 f
C. -9 f
D. 5 f
1 answer
B. -15 f