write a function for this table -- urgent -- I'm putting all my points into this -- bad answers reported! -- no explanation necessary

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]

Simplify the expression. -2/5(10+15m-20n)

Consider the function f(x)=-5x+3 what is f(-2)