Final answer:
The verbal phrase for the expression 2m + 8m is 'the sum of two m and eight m', indicating the addition of the two quantities.
Step-by-step explanation:
The expression 2m + 8m can be expressed as a verbal phrase by saying it is 'the sum of two m and eight m'. This means you are adding the value of two m to that of eight m. None of the other options provided correctly describe the expression, as they refer to multiplication or subtraction, which are not relevant in this context.