Hi,

Let x represent the total number of bake items

1/12 + 1/3 Or 5/12 of them were not cupcakes

x - (5/12)x = 35  

12x - 5x = 35*12

7x = 420

x = 60, the total number of bake items

CHECKING our Answer

(1/12)*60  + (1/3)*60 + 35 = 5 + 20 + 35 = 60 

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