Which has the best unit rates how work willnmark brainsest

64 oz for $8.60 has the best unit rate.
First find the unit rate for the both of them.
The unit rate of 16 oz for $3.30 = 3.30/16 = $0.21 to the nearest cent.
The unit rate for 64 oz for $8.69 = 8.69/64 = $0.13 to the nearest cent.

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.