#### Answer

binomial; 1

#### Work Step by Step

The polynomial $6x+15$ can be rewritten as $6x^{1}+15x^{0}$.
Therefore, this polynomial is a binomial, because it consists of 2 terms.
The degree of a term is the power to which the variable in the term is raised. The degree of a polynomial is equal to the largest degree among all of the terms in the polynomial.
Therefore, the degree of this polynomial is 1.