Answer:
3/9 is 1/3 but 4/9 is already simplified :D
if you are happy with my answer, please give brainliest :)
Step-by-step explanation:
Answer: 21
k(x) =x^3-2x
k(3) =3^3-2*(3)
k(3) =27-6
k(3) = 21
D
cuboid:6 sides 12 edges, parallelogram: opposite edges must be parallel and opposite must be the same size