Will choose your answer as

the height of a 0.5-liter orange juice box with a square base is a function of the width of its base,



where w is the width of the base in centimeters. find the width of the juice box if its height is 20 centimeters.

w =

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.