Answer:
2n is a rational expression known as a monomial term
Step-by-step explanation:
A monomial consists of one term which 2n is one term.
This is a rational expression that isn't irrational.
Another thing that I am thinking of is what happens if n is equal to something meaning what happens if n is equal to 3, you would do 2x3 which is equal to 6. A whole number is rational.
