Answer: 2.75 blankets.
Explanation:
The opportunity cost is the value of a good that is sacrificed by choosing some other alternative. So, there are certain costs associated with the consumption of some goods.
In our case,
Opportunity cost of producing 1 shirt = [tex]\frac{810}{294}[/tex]
= 2.75 blankets
Opportunity cost of producing 1 shirt is 2.75 blankets which means that 2.75 blankets have to be foregone to produce 1 shirt.