Respuesta :
answer: 13n+52+91m
Explination:
multiply 13 and n to get 13n
multiply 13 and 4 to get 52
multiply 13 and 7m to get 91 m
Explination:
multiply 13 and n to get 13n
multiply 13 and 4 to get 52
multiply 13 and 7m to get 91 m