A rotational molding operation has fixed costs of $5,000 per year and variable costs of $47 per unit. If the process is automated via conveyor, its fixed cost will be $49,000 per year, but its variable cost will be only $10 per unit. Determine the number of units each year necessary for the two operations to break even.

answer trochanter; i believe this is correct, plz check first, good luck;

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.