Answer:
D) 7 is monomial.
Step-by-step explanation:
Given : Monomial options .
To find : which expression is monomial.
Solution : We have given options
Monomial : Which has only one term with constant or positive exponent .
Then
7 is only the monomial .
All other polynomial has negative power and fractional power so, it would not be monomial .
X + 1 has two terms so it would also not a polynomial.
Therefore, D) 7 is monomial.
