Answer:
I can`t really see the question that well, but if I understand correctly here`s the first few.
1. Subtraction
2. Addition
3. Addition
4. Subtraction
5. Addition
6. Subtraction
It looks like its asking what is happening in those situations (is the number being added or subtracted). Sorry if that`s not much help
<span>ratio of their perimeters and the ratio of their areas would be </span>5:9 and 25:81
You didn’t include any picture or write a question what are we suppose to answer ?:,)