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BbyGirl2017
raymond bought 9 rolls because you divide 3 and 4 to get 0.75 and multiply it by 12 to get 9 rolls 
a dozen=12

first you need to find 1/4 of 12 

12÷4=3

so to find 3/4 multiply 3 by 3

3×3=9

he bought 9 rolls

hope this helped

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