man i am just getting stump on every question of my practice exam...

heres where im getting lost

Complete the following

du/dv, where u=y^2 and v=y+3y^3 where do i start? take the derivative of each?

dy/dx where y=f(1-2x) and f ' (x)= sec (x)

dy/dx at the point (1,2), where y=y^2-2x^3