Answer:24x+16
Step-by-step explanation:
So 100% - 20% - 10% - 30% = 40%
40% of people were men. It says that there were 3600 men and in order to find the total amount of people, do 3600/40% or 3600/.4
Which equals 9000
37.68 is the answer
Hope this helped! ^_^