Answer:
Fabio earned a commission of $114 only.
Explanation:
Given:
Selling price of the TV =$550
Selling price of the VCR =$400
Commission earned by Fabio = 12 %
We have to find commission on each item.
So,

Commission earned by Fabio is the commission on each item.
Commission earned on selling of TV is =$66
Commission earned on selling of VCR=$48
Summation of both =

Fabio earned a commission of $114 only.