Question

Find the missing number ____:7 = 12:21 A) 3 B) 14 C) 4 D) 12

Answer 1

I hope this helps and i hope wecan be  great  friends!!!!! and corrrect me if wrong but i think its A!!!!!!!!
   
   
     
    
   
        ~ 12 year old kakashi hatake

Answer 2

4:7
3×4:7×3
12:21

The answer is C) 4