Roberto decides to take a first-aid class at the local red cross. the cost of the class is $20. he will pay an additional $5 for transportation to and from the class. in order to attend the class, roberto will lose three hours at his job, where he earns $8 per hour. what is roberto's opportunity cost for taking the first-aid class?

The answer is: $24

Explanation:

The opportunity cost is the benefit that is given up when someone chooses one alternative over another.

Roberto will not be able to work for 3 hours if he takes the first aid class. So he is giving up 3 hours of work by choosing to take the class.  

Opportunity cost = 3 hours x $8/hours = $24

odd consecutive integers are odd integers that follow each other. they have a difference of 2 between every two numbers. if n is an odd integer, then n, n+2, n+4 and n+6 will be odd consecutive integers. the first number in the pattern is always the variable on its own or in this case, "n". examples.

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