Respuesta :

Given the table below describing the total and marginal benefit Elvis gets from fried peanut butter and banana sandwiches.

[tex]\begin{tabular} {|p {3.5cm}|p {2.0cm}|p {2.6cm}|} \multicolumn {3} {|c|} {Elvis' Fried Peanut Butter and Banana Sandwich Benefit}\\[2ex] Fried PBB Sandwiches&Total Benefit (dollars)&Marginal Benefit (dollars)\\[1ex] 1&&42\\ 2&&24\\ 3&75&\\ 4&81&\\ 5&&-3 \end{tabular}[/tex]

The marginal benefit of the 4th fried peanut butter and banana sandwich is given by $81 - $75 = $6.