Are 3.25/2.5 , 5.98/4.6 and 6.76/5.2 proportional?

How do you answer this question? (step by step)

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

Icould really use some with this question.