Cost of the house sold by Mrs. Hamilton = $175000
Percentage of fee that the agency got from the sale = 4%
Then
Amount of fees that the agency got from the sale = (4/100) * 175000 dollars
= 4 * 1750 dollars
= 7000 dollars
Percentage fees that Mrs hamilton got from the agency was 35% of the money that the agency made from the sale of the house.
Then
Amount of fees that Mrs.Hamilton got = (35/100) * 7000 dollars
= 35 * 70 dollars
= 2450 dollars
From the above deduction we can conclude that Mrs.Hamilton got a fees of $2450.