Please help I will mark you as brainlist it’s emergency

What is the smallest integer n such that n\sqrt{2} is greater than 20

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)