Answer:
D.$24
Explanation:
Opportunity cost: The opportunity cost is that cost which gives the best alternative option 
The computation of the total cost is shown below:
= Earning per hour + admission fee
= $15 per hour + $9
= $24 
Since the question is asking for the total cost, so we consider both the costs i.e earning per hour and admission fee.  
 
        
             
        
        
        
The variance is the  difference between the total actual cost incurred and the total standard cost.
<h3>What is variance in accounting?</h3>
In the field of accounting, the variance is simply referred to as the difference that exists between the forecasted amount and the actual amount.
Therefore from the definition that we have above the answer to this question is variance.
Read more on variance here: brainly.com/question/15858152
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The answer is B if that is the correct one 
 
        
                    
             
        
        
        
Answer:
yes!
Explanation: singing awesome