This one is super difficult, I see your struggle but the answer is A.
Answer:

Step-by-step explanation:
The formula Length x Width = Area is the correct formula for the area of a rectangle. The same formula works for a square!
In the 5/4 = ?/12 .. you have to solve if 4 goes into 12 that is 3. 4•3 equals 12. Now you have to multiply 5•3 and it will fill in your blank space. I hope this Helps.
Answer:
1C
2A
3B
4D
Step-by-step explanation:
I did it