Answer:
5
Step-by-step explanation:
since we know that there are 5 different flowers and 4 sets we do
5!=5x4x3x2x1=120
4!=4x3x2x1=24
we divide 120/24 and get {5}
(!) in math factorial means the product of an integer and all the integers below it. EX. 6!=6x5x4x3x2x1