You have to times 10 and 8 and find the common multiple..and anything you times by 10 and n that no more with an added 0 at the end (10•5=50) so you just have to times 8 enough to find a number timesed by 8 that ends in a 0....so you might first think 8•10 to = 80.....but you have to think of all of the other multiples...such as 5, since 5•8=40....so Elijah can have 40 hot dogs without having any other buns in r hotdogs leftover