Please explain step by step how you calculate opportunity cost!!!!!

Concerns over Globalization: How can both parties benefit from trade?

Production function $4$ hours of labor

$\backslash$table$[[,$me$,$Tom$],[$hours$,,$lbs$,,$lbs$],[$hunting$,$lbs meat,berries,lbs meat,berries$],[0,0,12,0,12],[1,1,9,2,9],[2,2,6,4,6],[3,3,3,6,3],[4,4,0,8,0]]$

Solve for relative prices $($price of one good in terms of the other$)$

Both parties only produce the good that provides a comparative advantage