Respuesta :
Answer:
7
Step-by-step explanation:
Common ratio of 3 so 21/3 = 7
Answer:
7
Step-by-step explanation:
189-63=126
63-21=42
126/3=42
42/3=14
21-14=
7
Answer:
7
Step-by-step explanation:
Common ratio of 3 so 21/3 = 7
Answer:
7
Step-by-step explanation:
189-63=126
63-21=42
126/3=42
42/3=14
21-14=
7