Respuesta :
16m. It is 16m because since m is the variable, you add the number in front of it, 1+7+1+7 is 16. So 16m.
All you need to do is combine the like terms:
m + 7m + m + 7m
8m + m + 7m
9m + 7m
16m would be the final expression.
Hope this helps! Happy thanksgiving, here's a turkey!