problem with permutation -
An omelet can be ordered plain or with any or all of the following fillings: cheese, onions, peppers. How many different kinds omelets are possible?
plain
c
co
cop
o
op
p
An omelet can be ordered plain or with any or all of the following fillings: cheese, onions, peppers. How many different kinds omelets are possible?
c
co
cop
o
op
p