a. If the beginning temperature was -13°F at 5:00 a. m., what was the temperature at 9:00 a. m.? Change in Temperature 5:00 a. m.- 6:00 a. m. -3°F 6:00 a. m. - 7:00 a. m. -2°F 7:00 a. m. - 8:00 a. m. -6°F 8:00 a. m.-9:00 a. m. 7°F b. The same cold front hit Hartford, Connecticut the next morning. The temperature dropped by 7°F each hour from 5:00 a. m. to 9:00 a. m. What was the beginning temperature at 5:00 a. m. if the temperature at 9:00 a. m. was -10°F?​