Yesterday at 12 a.m. (midnight) the temperature was 1.5oF . The temperature change in the next 8-hour period of time was - ⅘ degree per hour. The temperature change for a 3-hour period after that was ¾ degree per hour.
1. What was the temperature at 11:00 a.m.?
2. What was the change in temperature from midnight to 11 a.m.?