Answer:
$14,325.00
Step-by-step explanation:
-Given that Brian has 2.5% commission rate per house sold.
-The total commission earned is the product of the commission rate by the sum of the prices of total houses sold:
[tex]Commission=Commission \ Rate \times \sum{House \ Prices}\\\\=0.025(153000+299000+121000)\\\\=14325.00[/tex]
Hence, the total commission earned on the 3 sales was $14,325.00