Answer and Explanation:
a. Market Value of Almonds = 1,015 * 107
= $108,605.
Market value of Walnuts = 779 * 111
= $86,469
Brett's almonds are worth more than his neighbor's walnuts so he should not make the trade.
b. His preference does not matter.
What matters is the market value of the crops. With the amount he makes from selling his almonds, he will be able to buy more walnuts than his neighbor is offering if he really wants walnuts.