Answer:30
Step-by-step explanation:
Answer: 8 its not that hard just count
The answer is B because if there are 30 total and 12 are on 1 shelf, then 30-12=18
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4 is 1/15 for 1 6/20 for 2 3/20 for 3 1/10 for 4 3/10 for the last on
Its 12.9!!!!!!!!!!!!!!!!!!!!!!!!!!!
