1 hour = 60 minutes.
60 minutes / 20 minutes = 3.
55 people x 3 = 165 people per hour. (Rate per hour)
165 people x 3 hours = 495 people. (Total people in 3 hours)
Answer:
9
Step-by-step explanation:
just swap the first two and you should be good
-1 5/6, 1 2/3, -2.1, -2.2
Rember the numbers are neggative, then convert -1 2/3 to -1 4/6.
B and D
Surveys are only tested with one group.
