vallanarangel2 vallanarangel2 02-10-2019 Mathematics contestada For every 90 minutes of sleep, a person has one dream stage. Rachel went to bed at 10:00 P.M and woke up at 5:30 A.M. How many dream stages did she likely have? A. 5B. 6 C. 9D. 10 ( Please let me know quick )