Answer:
The answer to your question is: letter B
Step-by-step explanation:
Constant term is a number alone that is not together with a variable.
Options
A. x3 +y There are 2 variables, and zero constant numbers
B. x+2y +10 Number 10 is a constant
C. y6 + 8y3 +64y This trinomial do not have any constant
D. × Letter x is a variable not a constant