Respuesta :
B: 3m-5
Because 3 times m equals to 3m, 3 times -3 equals -9, then we have 3m-9+4, 3m-5 because -9+4=-5
Because 3 times m equals to 3m, 3 times -3 equals -9, then we have 3m-9+4, 3m-5 because -9+4=-5