It is not.
400 decimeters = 4,000 cm
4,000 cm = 40 m
Answer:
degree of polynomial = 5
leading term = 
leading coefficient = 2
constant term = -6
Step-by-step explanation:

(i) The degree of the polynomial = 5. That is, the highest power of x
(ii) Leading term =
. This is the term with the highest power of x.
(iii) Leading Coefficient = 2. That is, the coefficient of the leading term (
)
(iv) Constant term = -6. This is the term that is independent of x or the term in which x doesn't appear.