It should be "esos" because 1. "Otros"and "blancos" are masculine. (Match subject's gender) 2. Here is a trick: "this" and "these" have "t"s (esto, esta, estos, estas); "that" and "those" don't (eso, esa, esos, esas). 3. "Zapatos" is plural, so match the subject's number. 4. Remember to always match the subject's gender and number. Hope that helps!
The correct answer is 88 miles.