Verified Answer :

yes, 18 is a monomial because it is an expression with one term

Answer:

yes, 18 is a polynomial

Step-by-step explanation:

We have to show whether 18 is a polynomial or not

Polynomial is an expression involving variables and constants such that variables having non negative integer power.

Example \(2x^4, 3y^3\) etc,

Thus, yes 18 is a polynomial

as 18 can be written as \(18x^0\) where \(x^0=1\) and 0 is non negative integer,

Thus, yes 18 is a polynomial as it can be written as \(18x^0\)  having non negative integer power 0.