Respuesta :

Answer:

B) m + n + 55

Step-by-step explanation:

it is really not that hard

Answer: B

Step-by-step explanation:

( m + 11 )  +  ( n + 44 )  =  m  +  11  +  n  + 44   = m  +  n  +  11  +  44  =  m  +  n  +  55