Me i got suspended and i had to do this but idk how to do it

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

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

X-10/4 when x = –18 a 7 b –2 c –7 d 2