Answer:
the answer would be 28.
Step-by-step explanation:
you're multiplying the top and bottom by 7. 3 *7=21 for the bottom
4*7 = 28 for the top
Hope this helps
-Kayla
Answer:
The answer is A. 28
Step-by-step explanation:
When you divide 21 into 3 you get 7.
So you have to multiply 7 to get 21. Whatever you do to the bottom or top you have to do to the opposite so you have to multiply 7 by 4 and you get 28.
Hope this helps