Answer:
$600,000
Step-by-step explanation:
Opportunity cost also known as implicit cost is the cost of the next best option forgone when one alternative is chosen over other alternatives.
the next best option to Bob is to sell the cafe. If he did, he would have earned $600,000. This is his opportunity cost.
$50,000 constitutes a variable cost while $7000 is a fixed cost.
Fixed costs are costs that do not vary with output. e,g, rent, mortgage payments
If production is zero or if production is a million, Rent payments do not change - it remains the same no matter the level of output.
Variable costs are costs that vary with production
If a producer decides not to produce any output, there would be no need to hire labour and thus no need to pay hourly wages.