the volume of a rectangular solid is 96 cubic meters the height of the solid is twice the width and the length is thrice the height find the dimensions of the solid

A,8m by 6m by 2m
B,12m by 4m by 2m
C,12m by 6m by 1m
D,13m by 6m by 2m

one of the roots of polynomial equation
2x³ + 5x² - 28x - 15 = 0 is. -5 find the other roots

A,3/2,-3
B,1/2,-3
C,-3/2,3
D,-1/2,3

what is the value of x in the equation
³√x=4

A,64
B,16
C,4
D,12

which of the following are polynomial functions?
I. f(x) = x³–3x²– 2x-6
II,f(x) = 5x³-4x²– 8x+ ⁴/x
III,f(x) = (x–2) (x–1) (x+4)²
IV,f(x) = x-³ – 2x² + 4x – 6

A, I, III and IV
B, I only
C, I and III
D III only​