Hong went shopping after she woke up. it took hong 20 minutes to get ready to go shopping. she shopped for 45 minutes and then spent 40 minutes eating a snack. then she talked on the phone with her friends for 30 minutes. she finished talking to her friends at 10: 40 a. m. what time did hong wake up? a. work backward. hong started talking with her friends at 10: 10. hong started eating at 9: 30. hong started shopping at 8: 45. hong woke up at 8: 25. b. work backward. hong started talking with her friends at 10: 40. hong started eating at 11: 10. hong started shopping at 11: 50. hong woke up at 12: 25. c. work backward. hong started talking with her friends at 10: 20. hong started eating at 9: 40. hong started shopping at 8: 55. hong woke up at 8: 35