<span>Unless you have some other choices, I'd have to say Stratification, to make sure the groups are representative and heterogeneous.
I hope I helped.</span>
Answer:
the answer is 64 im 100% sure
Answer:
The area of the picture is
Step-by-step explanation:
Let
x-----> the length side of the square picture
we know that
The area of the picture plus the frame minus the area of the picture is equal to the area of the frame alone
The area of the picture is