Question 892727
How many different ways can three cell phone covers be drawn from a box containing four differently colored cell phone covers, 
if each cell phone cover is replaced after it has been drawn? 
Ans: 4*4*4 = 64 ways
----------------------------

If there is no replacement?
Ans: 4*3*2 = 24 ways
------------------------
Cheers,
Stan H.
--------------