Respuesta :
Answer:
21x
Step-by-step explanation:
You just have to multiply 3x by 7, which is
21x
Hope this helps!!
Plz let me know if I'm wrong...
Answer:
21.X
Step-by-step explanation:
You have to multiply 3x by 7 which is 21.X
so the answer is 21.X
please mark me brainlist