Answer: the opportunity cost of $600
Explanation:
From the question, we are informed that Tina withdraws $20,000 from her money market account to start up her own house cleaning business and that over that time, the account would have earned 3 percent interest.
In order to properly account for all costs of her business, Tina must not forget the opportunity cost of $600. This is calculated as 3% of $20,000.
The opportunity cost is what Time had to forgoes in order to start her business.
