Answer:
opportunity cost of this position is $46000
Explanation:
we know here there are 4 salary they are
$47,500 , $46,000 , $45,000 and $42,000
there are highest salary is $47500
and lowest salary is $42000
and if he is not choose this job
so then his next best alternative salary will be paying for job is $46000
so here we can at that Isaac's opportunity cost by choosing job with salary this $47500 is $46000
opportunity cost of this position is $46000