\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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In a library, you begin to work at 8:30 AM. You finish at 10:20 AM.
How much time do you work?
7
8
9
4
5
6
1
2
3
C
0
.
h
7
8
9
4
5
6
1
2
3
C
0
.
min
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