Answer
15
Work Step by Step
The degree of a term is the sum of the exponents on the variables contained in the term.
For the term $9.11r^{2}st^{12}$, the sum of the exponents is $2+1+12=15$.
Therefore, the degree of the term is 15.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.