Step-by-step explanation:
It is given that there are a total of [tex]900[/tex] people.
It is given that [tex]55[/tex]% of the people will reelect.
So,it can be found that [tex]100-55=45[/tex]% of the people may not reelect or may not make their decision yet.
So,number of people that may not reelect or may not make their decision yet is [tex]\frac{45}{100}\times 900=405[/tex].
So,[tex]405[/tex] people haven't made their decision yet or not reelect.