What is surface are of box with 12x6x9.5

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

What is the value of x in the following equation. -x ^3/2 = -27