On Friday, the temperature in a town at 5:00 p.m. was 7° F, which was 13 degrees warmer than at 9:00 a.m.
On Friday, from 5:00 p.m. to 11:00 p.m., the temperature changed an average of
¯ 1.25° F each hour.
What number represents the total change in temperature, in degrees Fahrenheit,
from 5:00 p.m. to 11:00 p.m.?