Answer: 8.000.000
Step-by-step explanation: every 8 year the people double in size so you need to multiply by 2 every 8 years every solution
500.000 · 2= 1.000.000
1.000.000 ·2= 2.000.000
2.000.000 ·2=4.000.000
4.000.000 ·2=8.000.000
32/ 8= 4 times to multiply