Answer:
Ayden met his goal of painting atleast 80% of 500 square meters of a house's walls.
Explanation:
We are given the following in the question:
Area of house wall to be painted = 500 square meters
Ayden's goal = Atleast 80% of the wall
Area covered by Ayden = 415 square meters
Calculation:

Thus, Ayden's goal is to atleast cover 400 square meter of wall.
Since,

Thus, Ayden met his goal of painting atleast 80% of 500 square meters of a house's walls.