I think it’s c hope this helps you :)
So,
The ratio of dogs to cats:

The other proportion:


5 times 28 is 140.
Multiply the fraction by the appropriate form of 1

There are 56 dogs when the number of cats is 140.
Answer:
The third one. The square in the top left can only fold to the right or down.... which means there is guaranteed to be an open side remaining on the square.