Answer:
a. The wholesale cost for the guitars that Felix pays the manufacturer
b. The rental income Felix could receive if he chose to rent out his showroom
c. The salary Felix could earn if he worked as a paralegal
d. The wages and utility bills that Felix pays
Felix's accounting profit = $722,000 - $422,000 - $268,000 = $32,000
Felix's economic profit = accounting profit - implicit costs = $32,000 - ($21,000 + $2,000) = $32,000 - $23,000 = $9,000
Opportunity costs are the extra costs or benefits lost from choosing one activity or investment over another alternative.