Which ratios can form a proportion?

Question

9/45, 8/40
8/12, 12/21
8/12, 12/15
9/22, 14/28

Answer 1

9/45, 8/40

Answer 2

is that right though?

Answer 3

ms sue you are interesting 💩

Answer 4

I HATE YALL CAUSE U R LIERS AND BY THE WAY KAT, YOUR RIGHT. SHE IS VERY INTERESTING 😈

Answer 5

UH yall sound weird saying shes very interesting

Answer 6

i agree ^^^^
that is weird to say that

Answer 7

What is the answer

Answer 8

9/45 8/40 i guess

Answer 9

I think it is 9/45 and 8/40