Final answer:
Carnelian Company must make $142,260 in sales to earn an operating income of $21,500.
Step-by-step explanation:
To calculate the sales that Carnelian Company must make to earn an operating income of $21,500, we need to set up an equation using the profit equation:
Profit = (Sales revenue - Variable costs) - Fixed costs
Substituting the given values:
$21,500 = (Sales revenue - $160) - $120,600
Now, rearranging the equation to solve for Sales revenue:
Sales revenue = $21,500 + $160 + $120,600
Sales revenue = $142,260
Therefore, Carnelian Company must make $142,260 in sales to earn an operating income of $21,500.