Answer and Explanation:
The computation is shown below:
a. The explicit cost of selling pianos would involve the wages & salaries expense and the wholesale cost that he pays the manufactured. These are considered as actual and would be added in the accounting
b. The accounting profit would be
Accounting profit is
= revenue - explicit cost
= $851,000 - $476,000 - $281,000
= $94,000
this is the answer and the options that are given are wrong
c. The economic profit would be
= Accounting profit - opportunity cost
= $94,000 - $34,000 - $71,000
= -$11,000
this is the answer and the options that are given are wrong