Answer:
Profit earned on the house if he sells = $79720
Explanation:
Amount paid by Joseph for his home = $105000
His house has increased its property value by 2.0% every year
So, Property cost after 20 years :

Also, Due to renovations and improvements to the house, the property cost is increased by $28700
So, Total cost of the house after 20 years = 156020 + 28700
= $184720
So, Profit earned on the house if he sells = 184720 - 105000
= $79720