Final answer:
Kristen earned a commission of $7,480.
Step-by-step explanation:
To calculate the commission earned by Kristen, we need to multiply the cost of the house by her commission rate. The commission rate is 5.5%, which can also be written as 0.055 in decimal form.
Commission = Cost of house * Commission rate
Commission = $136,000 * 0.055
Commission = $7,480
Therefore, Kristen earned a commission of $7,480.