You and two partners start a company. However, your partners play no role in running the company. You spend all your time managing the business. The time that you could have spent working for someone else and earning wages instead of running the business is your:

opportunity cost I guess

Total cost for the equipment=$49.500

Explanation:

To get the total cost recorded for the equipment, we will include the cost of the equipment and additional associated costs. The expression is;

Total cost for the equipment=Equipment purchase price+transportation costs+sales tax paid+installation costs

where;

Equipment purchase price=42,000

Transportation costs=2,300

Sales tax paid=3,200

Installation costs=2,000

replacing;

Total cost for the equipment=(42,000+2,300+3.200+2.000)

Total cost for the equipment=$49,500