Answer:
SIf Caden's burrito stand uses 7/8 of a bag of tortillas each day, then in one day, the stand will use 1 bag of tortillas after (1 / 7/8) = 8/7 days.
Therefore, 7 7/8 bags of tortillas will last for (7 7/8) x (8/7) = 8 days.
So, 7 7/8 bags of tortillas will last for 8 days at Caden's burrito stand.