Final answer:
Juliet would need to sell $6,000 worth of furniture during the month for the two choices to be equal.
Step-by-step explanation:
We can set up an equation to find the amount of sales at which the two choices would be equal. Let x represent the amount of furniture sold.
For the first choice of a monthly salary of $1520, the equation would be:
$1520 = $1400 + 0.02x
Simplifying the equation, we get:
$120 = 0.02x
Dividing both sides by 0.02, we find that x = $6,000.
Therefore, for the two choices to be equal, Juliet would need to sell $6,000 worth of furniture during the month.