What is rachael's opportunity cost for producing 1 belt and 1 neck tie? what is mike's opportunity cost for producing 1 belt and 1 neck tie? who has the comparative advantage in the production of each good? rachel's production belts neckties 0 8 1 12 2 4 3 0 mike's production belts neckties 0 9 3 6 6 3 9 0

So,it will be like each belt Rachel produces keeps her from producing 4 neckties, and each belt Mike produces keeps him from producing 1 necktie.
Rachel can make 12 neckties if she does nothing else and Mike can only 9.
Rachel has the advantage in the necktie department.
Mike can make 9 belts if he does nothing else, and Rachel can only manage 3.
Mike has the advantage in the belt department.

Hope this helps :)
Let me know if you need more help.

They way i figured it, i got the answer of a. $120,200

My favorite animal would be both