Respuesta :

lolziekween
She currently has 3.75 dozen
She gains 11.5 dozen 

A dozen contains 12 items so 

12 x 11.5 = 138


12 x 3.75 = 45

138 + 45 = 183

We have to convert 183 to dozen so therefore

183 / 12 = 11.5

Jane has 11.5 dozen boxes of envelopes




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