Find the missing values in the ratio table. Then write the equivalent ratios. Levers
6
18
Pulleys
3
6
Equivalent ratios: 6 :
: 6, and O:0

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.