Question 418789
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Hi
Let x represent flour needed to make 3 dozen cookies
Question Sets Up the Proportion  ( 3 1/2 = 7/2)
{{{(7/2)/5 = x/3}}}    | Cross Multiplying to solve for x 
   5x = 3*(7/2)
   5x = 21/2
    x = 21/10  2.1 c for 3doz