Answer
Value of marginal product of labor: 6 dollars
worker's marginal product: 2 sandwiches
Work Step by Step
Since he is maximizing his profit, the workers he hires have a marginal product of labor equal to their wage. Thus, the value of the marginal product of labor is 6 dollars.
The value of the marginal product of labor is the same as the price of the item, multiplied by the marginal product.
$VMPL = price * MP$
$6 = 3 * MP$
$6/3 = 3*MP/3$
$2 = MP$
