If Maria decides to purchase the sun hat ($8.00) and the beach towel ($7.00), she will spend a total of $15.00. Since she only has $20.00, the opportunity cost of her purchase will be the items she forgoes due to her choice.
The options available for her decision could be the magazines ($8.00) and the bathing suit ($15.00). However, she can only purchase the sun hat and towel with her budget, leaving the following items as opportunity costs:
- The magazines ($8.00)
- The bathing suit ($15.00)
So, the correct responses for the opportunity cost of her purchase are:
- The magazines
- The bathing suit
These are the two items Maria is giving up when she chooses to buy the sun hat and beach towel.