A pack of jelly beans contains seven flavors, apricot, fig, grape, coconut, date, banana, and eggplant. How many combinations can you make with the seven flavors mixed or alone?
2 answers
each flavor can be chosen or not, making 2^7=128 possible combinations of flavors. One of those is none at all, so if you discard that, it leaves 127.
What do you mean one of those is none