Answer
3 square unit(s)
Explanation
The question is testing the concept of substitution.
A=12s^2
If s=1/2 , what is the value of A?
Substituting s with 1/2 we get;
A=12(1/2)^2
=12×1/4
=3
The answer is 3 unit squared. The is not fraction in the answer.
