7)
4 door + 3 office + 7 big = 14 total bells
4 door out of 14 total = 4/14 = 2/7
8)
travel + hand + school = 1
5/10 + 4/10 + s = 1
9/10 + s = 1
s = 1/10
9)
25 golfish out of 45 total fish = 25/45 = 5/9
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