Please just please help.I’m desperate.

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]

Need asap. solve for the following inequality

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog