Answer:
yes Ayden meet his goal 
Explanation:
given data 
finishing painting at least = 80%
area = 500 m²
actually finish = 450 m²
to find out
did Aiden meet his goal today
solution
first we find here that Ayden had paint at least 80% of the 500 square meters 
so multiply 80% by 500
80% of 500 
= 0.8 × 500
=400
so here we know actually finished painting 450 is greater than 400
450 > 400
so we can say that here yes Ayden meet his goal