Final answer:
The numerical coefficient of the term -x⁷ is -1, and the degree of the term is 7.
Step-by-step explanation:
The term given is -x⁷. To find the numerical coefficient and the degree of the term, we need to identify the number in front of the variable and the highest power of the variable. The numerical coefficient is the factor that is multiplied by the variable raised to a power. In the given term, -x⁷, the numerical coefficient is -1, because there is an understood -1 multiplied by x⁷. The degree of a term is the exponent of the variable, which represents the highest power of the term. Therefore, the degree of the term -x⁷ is 7.