At 7 A.M. the temperature was -4 °F. At 9 A.M. it was 8 degrees warmer. By noon, it had increased 15 degrees. At midnight, it had dropped 12 degrees. What was the temperature at midnight? (Answer only with a number.) *
7 degrees because at seven am it was -4 at nine am it increased by ten this adds up to be 4 degrees by noon it had increased by 15. 15+ 4 is 19. at midnight it dropped 12 degrees 19 - 12 is 7.
