Can anyone help with this? 20 points

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]

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

What is the slope of the line that contains the points (-2,1) and (0,-3)