Answer all of these 50 points and brainliest

Which expression is equivalent to 4 square root 6 divided by 3 root 2

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20