The answer for this question is “A”
In order to get 1/4th of the sugar:
(1/3)*(1/4)=1/12 cups of sugar
Do you have answer choices?
Formula for the area of a square = side^2
So, 15^2 will result in the area.
Thus, the answer is 225 mm^2 (when squaring, units are always given the square as well.)