On a field trip, there are 3 adults for every 45 students. Which graph models a relationship with the same unit rate?
10
9
8
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6
10
9
8
F
H
0
30 60 90 120 150*
0
30 60
90
120 156
10
9
10
8
6
3
6
5
4
3
2
0
30 60 90 120 150
0
30
60 90 120 150