Answer:
$925,000
Step-by-step explanation:
Let "t" represent "total sales."
We are asking how much this person must bring in thru sales to end up with $55,000 in earnings.
A suitable equation would be:
$18,000 + 0.04t = $55,000.
Let's isolate t. Start by subtracting $18,000 from both sides, obtaining:
0.04t = $37,000
Dividing both sides by 0.04 results in t = $925,000.
Her sales must be $925,000 for her income (including earnings) to be $55,000.